Update broken links, mention deploy instructions

Author: avivace

CONTRIBUTING.md

@@ -18,7 +18,7 @@ Some notes on how the task are organised:
 
 ## Deploy
 
-Check the [DEPLOY](DEPLOY.MD) document to learn how to run a local copy of Pan Docs.
+Check the [DEPLOY](DEPLOY.md) document to learn how to run a local copy of Pan Docs.
 
 ## Community
 

README.md

@@ -8,7 +8,7 @@ Go to [gbdev.io/pandocs](https://gbdev.io/pandocs) to read the document.
 
 ## Contributing 
 
-Everyone is welcome to contribute opening issues, expressing feedback, adding and improving content or share new findings. Please, check [CONTRIBUTING](CONTRIBUTING.md) for a complete view on how to contribute to this project.
+Everyone is welcome to contribute opening issues, expressing feedback, adding and improving content or share new findings. Please, check the [contributing](CONTRIBUTING.md) guidelines for a complete view on how to contribute to this project or read the [deploy](DEPLOY.md) instructions to run a local copy of Pan Docs.
 
 ## License