Improve style guide info

doc/development/fe_guide/style/index.md

 # GitLab development style guides
 
-See below the relevant style guides, guidelines, linting, and other information for developing GitLab.
+See below for the relevant style guides, guidelines, linting, and other information for developing GitLab.
 
 ## JavaScript style guide
 
 We use `eslint` to enforce our [JavaScript style guides](javascript.md). Our guide is based on
-the excellent [AirBnB](https://github.com/airbnb/javascript) style guide with a few small
+the excellent [Airbnb](https://github.com/airbnb/javascript) style guide with a few small
 changes.
 
 ## SCSS style guide