Rename internal to innersourcing (internal)

Description

We advocate innersourcing, but don't do a good job of showing that. We should rename Internal to Innersourcing

Proposal

Because the jump from one to the next can be unfriendly to users, I propose to rename Internal to

• Innersourcing (internal)

Links / references

Documentation blurb

(Write the start of the documentation of this feature here, include:

1. Why should someone use it; what's the underlying problem.
2. What is the solution.
3. How does someone use this

During implementation, this can then be copied and used as a starter for the documentation.)

cc @mydigitalself @courtlandia @joe.s