Fix a typo in the 3.1.2 release notes.
The release notes said "RBToolls" instead of "RBTools". This is a
trivial fix for the typo.
@@ -11,7 +11,7 @@ RBTools 3.1.2 Release Notes
Windows Installer
=================
-* The RBToolls for Windows installer now ships Python 3.8.14, the latest in
+* The RBTools for Windows installer now ships Python 3.8.14, the latest in
the 3.8.x series.
RBTools 3.x will be the last to support Windows installers compatible with
