Merge pull request #322 from grondo/small-fixes

fix a couple small issues

Author: mergify[bot]

.github/workflows/main.yml

@@ -3,6 +3,7 @@ jobs:
   check-pr:
     name: validate commits
     runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
     steps:
     - uses: actions/checkout@v2
       with:

index.rst

@@ -216,6 +216,12 @@ This specification describes the Flux implementation of the Hostlist Format
 
 This specification describes the Flux job urgency parameter.
 
+:doc:`31/Job Constraints Specification <spec_31>`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This specification describes an extensible format for the description of
+job constraints.
+
 .. Each file must appear in a toctree
 .. toctree::
    :hidden: