Merge pull request #1127 from nextstrain/fix-docs-build

docs: Unpin docutils

Author: joverlee521

docs/conda.yml

@@ -9,7 +9,7 @@ dependencies:
     - recommonmark
     - requests
     - sphinx
-    - docutils<0.18
+    - docutils
     - sphinx-argparse
     - sphinx-autobuild
     - sphinx-copybutton