README.md: replace IOSqueak with Golidlocks

Summary:
From #1 (@mvo5)
> The current "License" section mentions "iosqueak". This looks like a copy/paste to me, it probably should say `goldilocks` here.
>
> Also the link in `See the official project page.` is 404 for me, but because I don't know where it should point to I did not change that.

Test Plan: N/A

Reviewers: tfu

Reviewed By: tfu

Subscribers: mvo5

Tags: #goldilocks_project, #programming_dept

Differential Revision: https://phab.mousepawmedia.com/D407

README.md

@@ -63,7 +63,7 @@ All contributions are licensed to us under the
 License
 ----------------------------------------
 
-IOSqueak is licensed under the BSD-3 License. (See LICENSE.md)
+Goldilocks is licensed under the BSD-3 License. (See LICENSE.md)
 
 The project is owned and maintained by [MousePaw Media](https://mousepawmedia.com/developers).