chores: revamp readme, optimize logo, add makefile
Just some chores to clean up the project.
- Renames the project to r/Redirect (Since r/Slash would be read as r-slash-slash which doesn't make sense.)
- Optimize logo with SVGO, it's literally the biggest thing in this add-on since it's so small.
- Revamp the README, it's now much clearer, better formatted, and recommends other extensions or an alternative approach.
Related
- Closes #3 (closed)