[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

docs/spellingcheck.yaml

@@ -9,7 +9,7 @@ matrix:
         - wordlist.txt
       output: wordlist.dic
     sources:
-    - _build/html/**/*.html|!_build/html/index.html|!_build/html/contributing/style_guide.html|!_build/html/glossary.html|!_build/html/genindex.html|!_build/html/search.html
+      - _build/html/**/*.html|!_build/html/index.html|!_build/html/contributing/style_guide.html|!_build/html/glossary.html|!_build/html/genindex.html|!_build/html/search.html
     pipeline:
       - pyspelling.filters.html:
           comments: false