Update help to include --envs

cpm/Cpm.icl

@@ -143,10 +143,11 @@ doProjectAction world cleanhome  _  pn  (ProjectPath pa)  = doProjectPathAction
 doProjectAction world _          _  _   _                 =
   help "cpm project <projectname> <action>"
     [  "Where <action> is one of the following"
-    ,  "  create             : create a new project"
-    ,  "  show               : show project information"
-    ,  "  build [--force]    : build the project. Optionally force build (default: 'false')"
-    ,  "  path <add|remove>  : add or remove a path from the project"] world
+    ,  "  create                              : create a new project"
+    ,  "  show                                : show project information"
+    ,  "  build [--force] [--envs=filename]   : build the project. Optionally force build (default: 'false')"
+    ,  "                                        Optionally specify the environments file (default: 'IDEEnvs')"
+    ,  "  path <add|remove>                   : add or remove a path from the project"] world
 
 doProjectPathAction :: *World .String .String .PathAction -> .World
 doProjectPathAction world cleanhome pn (AddPathAction path)