primer: adding sphinx makefile

Author: Sam Kleinman

primer/config/build_conf.yaml

@@ -13,9 +13,9 @@ version:
 system:
   make:
     generated:
+      - 'sphinx'
       - 'meta'
       # - 'push'
-      # - 'sphinx'
     static:
       - 'makefile.compatibility'
       - 'makefile.clean'