diff --git a/docs/getting-started/installation.html b/docs/getting-started/installation.html
index 27a392cc..cc0bf0b9 100644
--- a/docs/getting-started/installation.html
+++ b/docs/getting-started/installation.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Installation · Diagrams</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="It uses [Graphviz](https://www.graphviz.org/) to render the diagram, so you need to [install Graphviz](https://graphviz.gitlab.io/download/) to use **diagrams**. After installing graphviz (or already have it), install the **diagrams**."/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Installation · Diagrams"/><meta property="og:type" content="website"/><meta property="og:url" content="https://diagrams.mingrammer.com/"/><meta property="og:description" content="It uses [Graphviz](https://www.graphviz.org/) to render the diagram, so you need to [install Graphviz](https://graphviz.gitlab.io/download/) to use **diagrams**. After installing graphviz (or already have it), install the **diagrams**."/><meta property="og:image" content="https://diagrams.mingrammer.com/img/diagrams.png"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://diagrams.mingrammer.com/img/diagrams.png"/><link rel="shortcut icon" href="/img/diagrams.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css"/><script>
+<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Installation · Diagrams</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="It requires **Python 3.6** or higher, check your Python version first."/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Installation · Diagrams"/><meta property="og:type" content="website"/><meta property="og:url" content="https://diagrams.mingrammer.com/"/><meta property="og:description" content="It requires **Python 3.6** or higher, check your Python version first."/><meta property="og:image" content="https://diagrams.mingrammer.com/img/diagrams.png"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://diagrams.mingrammer.com/img/diagrams.png"/><link rel="shortcut icon" href="/img/diagrams.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css"/><script>
               (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
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@@ -62,7 +62,8 @@
                 };
               }
             });
-        </script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><h1 id="__docusaurus" class="postHeaderTitle">Installation</h1></header><article><div><span><p>It uses <a href="https://www.graphviz.org/">Graphviz</a> to render the diagram, so you need to <a href="https://graphviz.gitlab.io/download/">install Graphviz</a> to use <strong>diagrams</strong>. After installing graphviz (or already have it), install the <strong>diagrams</strong>.</p>
+        </script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><h1 id="__docusaurus" class="postHeaderTitle">Installation</h1></header><article><div><span><p>It requires <strong>Python 3.6</strong> or higher, check your Python version first.</p>
+<p>It uses <a href="https://www.graphviz.org/">Graphviz</a> to render the diagram, so you need to <a href="https://graphviz.gitlab.io/download/">install Graphviz</a> to use <strong>diagrams</strong>. After installing graphviz (or already have it), install the <strong>diagrams</strong>.</p>
 <blockquote>
 <p>macOS users can download the Graphviz via <code>brew install graphviz</code> if you're using <a href="https://brew.sh">Homebrew</a>. Similarly, Windows users with <a href="https://chocolatey.org">Chocolatey</a> installed can run <code>choco install graphviz</code>.</p>
 </blockquote>
diff --git a/docs/getting-started/installation/index.html b/docs/getting-started/installation/index.html
index 27a392cc..cc0bf0b9 100644
--- a/docs/getting-started/installation/index.html
+++ b/docs/getting-started/installation/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Installation · Diagrams</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="It uses [Graphviz](https://www.graphviz.org/) to render the diagram, so you need to [install Graphviz](https://graphviz.gitlab.io/download/) to use **diagrams**. After installing graphviz (or already have it), install the **diagrams**."/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Installation · Diagrams"/><meta property="og:type" content="website"/><meta property="og:url" content="https://diagrams.mingrammer.com/"/><meta property="og:description" content="It uses [Graphviz](https://www.graphviz.org/) to render the diagram, so you need to [install Graphviz](https://graphviz.gitlab.io/download/) to use **diagrams**. After installing graphviz (or already have it), install the **diagrams**."/><meta property="og:image" content="https://diagrams.mingrammer.com/img/diagrams.png"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://diagrams.mingrammer.com/img/diagrams.png"/><link rel="shortcut icon" href="/img/diagrams.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css"/><script>
+<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Installation · Diagrams</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="It requires **Python 3.6** or higher, check your Python version first."/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Installation · Diagrams"/><meta property="og:type" content="website"/><meta property="og:url" content="https://diagrams.mingrammer.com/"/><meta property="og:description" content="It requires **Python 3.6** or higher, check your Python version first."/><meta property="og:image" content="https://diagrams.mingrammer.com/img/diagrams.png"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://diagrams.mingrammer.com/img/diagrams.png"/><link rel="shortcut icon" href="/img/diagrams.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css"/><script>
               (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
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@@ -62,7 +62,8 @@
                 };
               }
             });
-        </script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><h1 id="__docusaurus" class="postHeaderTitle">Installation</h1></header><article><div><span><p>It uses <a href="https://www.graphviz.org/">Graphviz</a> to render the diagram, so you need to <a href="https://graphviz.gitlab.io/download/">install Graphviz</a> to use <strong>diagrams</strong>. After installing graphviz (or already have it), install the <strong>diagrams</strong>.</p>
+        </script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><h1 id="__docusaurus" class="postHeaderTitle">Installation</h1></header><article><div><span><p>It requires <strong>Python 3.6</strong> or higher, check your Python version first.</p>
+<p>It uses <a href="https://www.graphviz.org/">Graphviz</a> to render the diagram, so you need to <a href="https://graphviz.gitlab.io/download/">install Graphviz</a> to use <strong>diagrams</strong>. After installing graphviz (or already have it), install the <strong>diagrams</strong>.</p>
 <blockquote>
 <p>macOS users can download the Graphviz via <code>brew install graphviz</code> if you're using <a href="https://brew.sh">Homebrew</a>. Similarly, Windows users with <a href="https://chocolatey.org">Chocolatey</a> installed can run <code>choco install graphviz</code>.</p>
 </blockquote>
