Fully automate dev setup with Gitpod

This commit implements a fully-automated development setup using Gitpod.io, an
online IDE for GitLab, GitHub, and Bitbucket that enables Dev-Environments-As-Code.
This makes it easy for anyone to get a ready-to-code workspace for any branch,
issue or pull request almost instantly with a single click.

.gitpod.yml

@@ -0,0 +1,3 @@
+tasks:
+  - init: 'echo "TODO: Replace with init/build command"'
+    command: 'echo "TODO: Replace with command to start project"'

README.md

@@ -1,3 +1,7 @@
+[![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/florinpop17/app-ideas)
+
+[![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/florinpop17/app-ideas)
+
 ## :ledger: App Ideas Collection
 
 ![App Ideas Image](./app-ideas.png)