Exclude CHANGELOG.rst and help_text files

Per #11195 (comment)

Author: yarikoptic

setup.cfg

@@ -47,10 +47,10 @@ readthedocs/__init__.py =
 
 [codespell]
 # Ref: https://github.com/codespell-project/codespell#using-a-config-file
-skip = .git,*.svg,locale,package-lock.json,*.css,*.min.*,vendor,*.ai,setup.cfg,migrations
+skip = .git,*.svg,locale,package-lock.json,*.css,*.min.*,vendor,*.ai,setup.cfg,migrations,CHANGELOG.rst
 check-hidden = true
 # some names and abbreviations and very long lines (minimized?)
 # TODO: fixup help_text in readthedocs/builds/models.py : "to perfom an"
-ignore-regex = \b(Manuel|DED|Wile E. Coyote|Couldn\\u2019t|to perfom an)\b|.{300,}|"pyton\b|\|(ative|ment)\||"Hel" will match\b|ative: ''
+ignore-regex = \b(Manuel|DED|Wile E. Coyote|Couldn\\u2019t|to perfom an)\b|.{300,}|"pyton\b|\|(ative|ment)\||"Hel" will match\b|ative: ''|help_text *=.*
 # TODO: fix syntaxt -- would require transition?
 ignore-words-list = fo,te,astroid,requestor,syntaxt