New programming tool?

If you're providing a new programming tool, continue in this section. Please check all of these (and do the implied work):

I have included a subdirectory for the programming tool
I have included a README.md in the directory with the information spelled out in the highest-level README.md
I have written the README.md in a way that is approachable for beginners
I have simplified the configuration files to be useable and approachable by beginners

Changes to existing tool directories

I have maintained the usability of the tool for beginners
If you added a new configuration specific for another tool (e.g. vim bindings), you have added a new configuration with an appropriate name (e.g. tmux_vim_config)
I have tested to make sure that the configuration still works