Documentation feedback - Updates required

Christopher Guindon
2023-01-12T19:43:35Z

- Result definition should be moved to response section: https://api.eclipse.org/#tag/Projects
- Fix typos such as spec_project_working_group="" in the query params section
- Missing description for response headers
- Project params: add in one or two very specific (i.e., full path) examples for how to fetch a specific project. It's not clear to users that they need to replace periods with underscore
- missing description for some query params

![Screen Shot 2020-02-12 at 4 56 00 PM](https://user-images.githubusercontent.com/893942/74380942-85a92f00-4db8-11ea-81cd-23de3a07bf42.png)