Merge pull request haskell#10798 from haskell/ulysses4ever-docs-version-bump

docs/conf.py: bump project development version

Author: mergify[bot]

doc/conf.py

@@ -13,7 +13,7 @@
 sys.path.insert(0, os.path.abspath('.'))
 import cabaldomain
 
-version = "3.13.0.0"
+version = "3.15.0.0"
 
 extensions = [
     'sphinx.ext.extlinks',