update new draft documentation

Author: mr-c

doc/add-new-draft.md

@@ -1,17 +1,18 @@
 How to make a new draft version of the CWL spec
 
-1. Duplicate prior draft-n directory to draft-n+1 in a branch
+1. Duplicate prior directory to "vNewVersion-dev1" or "vExistingVersion-devN+1'
+   in a branch
 2. Update references to the new draft name.
 3. Pull in the latest metaschema, where `schema_salad_repo` is the remote
    repository for the schema salad tool.
 
      git fetch --all
-     git subtree add -P draft-4/salad schema_salad_repo/master
+     git subtree add -P v1.1.0-dev1/salad schema_salad_repo/master
 
 4. In the reference implementation (cwltool): make a new branch, and update the
    subtree checkout of the spec:
 
-     git subtree merge -P cwltool/schemas/ cwl_repo/draft-4
+     git subtree merge -P cwltool/schemas/ cwl_repo/v1.1.0-dev1
 
    Where `cwl_repo` is the remote repository for the CWL specifications.
 4. In the reference implementation, teach it about the new draft version: