Add cylc vr to cheatsheet (#585)

Author: wxtim

src/7-to-8/cheat-sheet.rst

@@ -53,15 +53,9 @@ Install a workflow from source and run it:
          rose suite-run
      - ::
 
-         # install from $PWD
-         cylc install
-
-         # run the installed workflow
-         cylc play <name>
-
-         # alternatively:
          # validate, install & play
          cylc vip <name>
+         cylc vip # use $PWD
 
 
 Reloading
@@ -87,11 +81,10 @@ To update a running workflow with changes from the source directory:
          rose suite-run --reload
      - ::
 
-         # re-install from source
-         cylc reinstall <name>
-
-         # reload the worklow
-         cylc reload <name>
+         # Validate against source;
+         # Reinstall;
+         # Reload or Play
+         cylc vr <name>
 
 
 Pausing & Unpausing