Include couchapp install in README -- thanks Jay

README

@@ -1,13 +1,14 @@
 Catlg is a catalog. Use it to manage and display collections of things.
 
-Catlg is a CouchApp (http://couchapp.org). To install it, get CouchDB 
-up and running on your machine, cd into the Catlg directory, and run 
-the following command:
+Catlg is a CouchApp. To install it, get CouchDB up and running on your 
+machine, install the couchapp command-line tool 
+(http://couchapp.org/page/installing), cd into the Catlg directory, and 
+run the following command:
 
     $ couchapp push . http://127.0.0.1:5984/catlg
 
-Add a .couchapprc file to the Catlg directory with the following in it 
-and all you have to do is `couchapp push`:
+If you add a .couchapprc file to the Catlg directory with the following 
+in it all you have to do is `couchapp push`:
 
     {
       "env": {
@@ -16,4 +17,3 @@ and all you have to do is `couchapp push`:
         }
       }
     }
-