v1.5.1 documentation (#35)

* Added documentation for search pullrequests feature

* Added documenation for the create pull request feature

v1.5.0: documentation for PRs list, overview, comments and changed fi…

…les features (#33)

v1.4.0: documentation

v1.4.0: documentation

Added link to the AskTheCode GPT

marked commit feature as beta

Added documentation for custom branches and search functionality

Added documentation for custom branches and search functionality

Extended Github Issues documentation

Added documentation on how to change the authentication type