docs: fix misspellings (#417)

CONTRIBUTING.md

@@ -36,7 +36,7 @@ It solves this problem substantially better by providing a Deno-aware wrapper of
 Hence, you can write a Deno project and directly compile it to JavaScript files that run under Node.js.
 
 In other words, working on grammY effectively means work on a Deno project.
-We use Deno testing, Deno linting, Deno formatting, and the [Deno extension](https://marketplace.visualstudio.com/items?itemName=denoland.vscode-deno) for VSCode.
+We use Deno testing, Deno linting, Deno formatting, and the [Deno extension](https://marketplace.visualstudio.com/items?itemName=denoland.vscode-deno) for VS Code.
 Your usual TypeScript tooling does not work—and once you tried developing for Deno and you have experienced how superior the development experience is, you will know why we are happy about our choice.
 
 > Note that not all plugins of grammY have to have the same setup: many of them only integrate with grammY itself, and hence can be written for Node and automatically ported to Deno via <https://skypack.dev/> and similar services.

README.md

@@ -68,7 +68,7 @@ Congrats! You just wrote a Telegram bot :)
 
 ## Going Further
 
-grammY has an excellent [documentation](https://grammy.dev), and an [API Reference](https://doc.deno.land/https://deno.land/x/grammy/mod.ts). It even integrates with your code editor, e.g. [VSCode](https://code.visualstudio.com/). You can hover over any element of grammY to get a detailed description of what that thing does or means.
+grammY has an excellent [documentation](https://grammy.dev), and an [API Reference](https://doc.deno.land/https://deno.land/x/grammy/mod.ts). It even integrates with your code editor, e.g. [VS Code](https://code.visualstudio.com/). You can hover over any element of grammY to get a detailed description of what that thing does or means.
 
 If you are still stuck, just join the [Telegram chat](https://t.me/grammyjs) and ask for help. People are nice there and we appreciate your question, no matter what it is :)
 

src/composer.ts

@@ -248,7 +248,7 @@ export class Composer<C extends Context> implements MiddlewareObj<C> {
  * bot.on('::url', ctx => { ... })
  * ```
  *
- * You can use autocomplete in VSCode to see all available filter queries.
+ * You can use autocomplete in VS Code to see all available filter queries.
  * Check out the
  * [documentation](https://grammy.dev/guide/filter-queries.html) on the
  * website to learn more about filter queries in grammY.