Update README details

[gmitch215]

• Changes specified branch from master to develop (since you made it the default branch, I assume that is the branch where releases are made)
• Adds more details of what to search for
  • When you changed the group ID, it is now seen as a different plugin, so this is referenced

[Azn9]

Changes specified branch from master to develop (since you made it the default branch, I assume that is the branch where releases are made)

Nope, I made it the default to show newcomers that the project is not abandoned like the original one. The releases are still published on the master branch.

Also, the plugin name is written in the readme, just above where this link is. I also assume that people that search how to install the plugin would actually search for it by its name, so I don't think that these changes are needed.

Tho, thanks for your time and your will to help this project!