Installing-MP-Gryphon.md

@@ -32,6 +32,7 @@ The Gryphon Python GUI works in tandem with the Monterey Phoenix V4 trace genera
     | Centos 7 | centos7 |
     | Older Mac OS | macos |
     | Newer Mac OS (Gryphon only) | macos_read_only |
+    | MP Gryphon repositories only | gryphon_only |
 
 1. Run the installer by typing `./install_mp.bash <OS>`.  For example to install MP on Ubuntu 18 type: