[docs] fix typo (#7672)

* [docs] fix typo

Fixed "quckly" to "quickly"

* [docs] fix typo

Fixed "beend" to "been".

* [docs] fix typo

Fixed "propsoal" to "proposal".

site/content/blog/2021-08-01-whats-new-in-svelte-august-2021.md

@@ -59,7 +59,7 @@ To see all updates to SvelteKit, check out the [SvelteKit changelog](https://git
 - [Svelte-Capacitor](https://github.com/drannex42/svelte-capacitor/) just released v2.0.0 - making it even easier to build hybrid mobile apps for iOS and Android using Svelte and Capacitor with near native performance.
 - [svelte-remixicon](https://github.com/ABarnob/svelte-remixicon) is an icon library for Svelte based on Remix Icon, consisting of more than 2000 icons.
 - [SveltePress](https://github.com/GeopJr/SveltePress) is a documentation tool built on top of SvelteKit.
-- [Svelte Starter Kit](https://github.com/one-aalam/svelte-starter-kit/tree/auth-supabase) is a boilerplate to quckly get up and running with Svelte, with Auth and User Profiles powered by Supabase.
+- [Svelte Starter Kit](https://github.com/one-aalam/svelte-starter-kit/tree/auth-supabase) is a boilerplate to quickly get up and running with Svelte, with Auth and User Profiles powered by Supabase.
 - [Kahi UI](https://github.com/novacbn/kahi-ui) is a Svelte-first UI kit with Dark Mode built-in.
 - [typesafe-i18n](https://github.com/ivanhofer/typesafe-i18n) is an opinionated, fully type-safe, lightweight localization library for TypeScript and JavaScript projects with no external dependencies.
 

site/content/blog/2021-10-01-whats-new-in-svelte-october-2021.md

@@ -33,7 +33,7 @@ Notable SvelteKit improvements this month include...
 - Svelte libraries should now work out-of-the-box without any Vite configuration ([#2343](https://github.com/sveltejs/kit/pull/2343))
 - Improvements to package exports field ([#2345](https://github.com/sveltejs/kit/pull/2345) and [#2327](https://github.com/sveltejs/kit/pull/2327))
 - [breaking] The `prerender.pages` config option has been renamed to `prerender.entries` ([#2380](https://github.com/sveltejs/kit/pull/2380))
-- A new generic argument has beend added to allow typing Body from hooks ([#2413](https://github.com/sveltejs/kit/pull/2413))
+- A new generic argument has been added to allow typing Body from hooks ([#2413](https://github.com/sveltejs/kit/pull/2413))
 - The `svelte` field will be added to package.json when running the package command ([#2431](https://github.com/sveltejs/kit/pull/2431))
 - [breaking] The `context` parameter of the load function was renamed to `stuff` ([#2439](https://github.com/sveltejs/kit/pull/2439))
 - Added an `entryPoint` option for building a custom server with `adapter-node` ([#2414](https://github.com/sveltejs/kit/pull/2414))
@@ -92,7 +92,7 @@ Check out the community site [sveltesociety.dev](https://sveltesociety.dev/templ
 
 ## Before you go, answer the call for speakers!
 
-Svelte Summit Fall 2021 (happening 20 November 2021) is looking for speakers. Submit your talk propsoal before 30 October... all are welcome to present and attend.
+Svelte Summit Fall 2021 (happening 20 November 2021) is looking for speakers. Submit your talk proposal before 30 October... all are welcome to present and attend.
 
 ### More info on the [sessionize site](https://sessionize.com/svelte-summit-fall-2021/)