correct syntax of .pyup.yml, fixes #849,#850 (mozilla-services#851)

Peter Bengtsson · web-flow · commit afd3480a65be · 2018-03-21T16:11:22.000-04:00
diff --git a/.pyup.yml b/.pyup.yml
@@ -3,5 +3,5 @@ label_prs: update
 requirements:
   - requirements.txt
   - tests/systemtest/requirements.txt
-  - docs-requirements.txt
+  - docs-requirements.txt:
     pin: False
