initial cleanup post docs merge (#6095)

.github/actions/docs-spelling/excludes.txt

@@ -0,0 +1,75 @@
+# See https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples:-excludes
+(?:^|/)(?i)COPYRIGHT
+(?:^|/)(?i)LICEN[CS]E
+(?:^|/)3rdparty/
+(?:^|/)go\.sum$
+(?:^|/)package(?:-lock|)\.json$
+(?:^|/)pyproject.toml
+(?:^|/)requirements(?:-dev|-doc|-test|)\.txt$
+(?:^|/)vendor/
+ignore$
+\.a$
+\.ai$
+\.avi$
+\.bmp$
+\.bz2$
+\.class$
+\.coveragerc$
+\.crt$
+\.css$
+\.dll$
+\.docx?$
+\.drawio$
+\.DS_Store$
+\.eot$
+\.exe$
+\.gif$
+\.git-blame-ignore-revs$
+\.gitattributes$
+\.graffle$
+\.gz$
+\.icns$
+\.ico$
+\.jar$
+\.jks$
+\.jpe?g$
+\.key$
+\.lib$
+\.lock$
+\.map$
+\.min\..
+\.mod$
+\.mp[34]$
+\.o$
+\.ocf$
+\.otf$
+\.pdf$
+\.pem$
+\.png$
+\.psd$
+\.pyc$
+\.pylintrc$
+\.s$
+\.svgz?$
+\.tar$
+\.tiff?$
+\.ttf$
+\.wav$
+\.webm$
+\.webp$
+\.woff2?$
+\.xlsx?$
+\.zip$
+^\.github/actions/spelling/
+^\.github/ISSUE_TEMPLATE/
+^\Q.github/workflows/spelling.yml\E$
+^\.yarn/
+^\Qnode_modules/\E$
+^\Qsrc/\E$
+^\Qstatic/\E$
+^\Q.github/\E$
+(?:^|/)package(?:-lock|)\.json$
+(?:^|/)yarn\.lock$
+(?:^|/)(?i)docusaurus.config.js
+(?:^|/)(?i)README.md
+^\static/