Pull Request Page

1. Title - this is a summarised description of what the PR will do if merged
2. Number - numeric identification, people will occasionally refer to PRs by this number
3. Files changed - the 'diff' (short for difference) displays the files that were changed
4. Description - the longform description of what the PR does, if necessary

1. File name - the name of the file being displayed.
2. Line number - the number of code being displayed.
3. Red background - lines with red backgrounds have been removed or modified.
4. Green background - lines with green backgrounds have been added or modified.