docs: fix typos (@Leonabcd123) (monkeytypegame#6945)

Added an apostrophe in "It's"
Added missing "to"
Removed extra "s" in "quotes"

Author: Leonabcd123

docs/CONTRIBUTING_ADVANCED.md

@@ -118,7 +118,7 @@ Follow these steps if you want to work on anything involving the database/accoun
 
 ## Building and Running Monkeytype
 
-Its time to run Monkeytype. Just like with the databases, you can run the frontend and backend manually or with Docker.
+It's time to run Monkeytype. Just like with the databases, you can run the frontend and backend manually or with Docker.
 
 ### Dependencies (if running manually)
 

docs/CONTRIBUTING_BASIC.md

@@ -89,4 +89,4 @@ Once your PR is approved, all that is left to do is merge it!
 
 ## Questions
 
-If you have any questions, comments, concerns, or problems, don't hesitate let us know via [email](mailto:[email protected])(to Miodec), on [GitHub](https://github.com/monkeytypegame/monkeytype/discussions) or on [Discord](https://discord.gg/monkeytype) in the [`#development`](https://discord.com/channels/713194177403420752/713196019206324306) channel and a contributor will be happy to assist you.
+If you have any questions, comments, concerns, or problems, don't hesitate to let us know via [email](mailto:[email protected])(to Miodec), on [GitHub](https://github.com/monkeytypegame/monkeytype/discussions) or on [Discord](https://discord.gg/monkeytype) in the [`#development`](https://discord.com/channels/713194177403420752/713196019206324306) channel and a contributor will be happy to assist you.

docs/QUOTES.md

@@ -28,7 +28,7 @@ If the language does exist in Monkeytype, but there are no quotes for it create
 
 ### Committing Quotes
 
-Once you have added your quotes(s), you now need to create a pull request to the main Monkeytype repository. Go to the branch where you added your quotes on GitHub. Then make sure your branch is up to date. Once it is up to date, click "contribute".
+Once you have added your quote(s), you now need to create a pull request to the main Monkeytype repository. Go to the branch where you added your quotes on GitHub. Then make sure your branch is up to date. Once it is up to date, click "contribute".
 
 Update branch:
 <img width="1552" alt="Screenshot showing how to update the fork to match the main Monkeytype repository" src="https://user-images.githubusercontent.com/83455454/149186547-5b9fe4fd-b944-4eed-a959-db43f96198bf.png">