Add spellchecking to the repository

.editorconfig

@@ -0,0 +1,22 @@
+# top-most EditorConfig file
+root=true
+
+# Apply Windows-style newlines with a newline ending on every file, using UTF-8, and removing extra whitespace before newlines
+[*]
+end_of_line = crlf
+insert_final_newline = true
+charset = utf-8
+trim_trailing_whitespace = true
+
+# Overrides for Yaml Files - Use two spaces for indents
+# editorconfig/editorconfig#329
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2
+
+# Overrides for Markdown Files - Use tab for indents (accessibility)
+[*.md]
+indent_style = tab
+
+[{allow.txt,excludes.txt,patterns.txt,expect.txt}]
+end_of_line = lf

.github/ISSUE_TEMPLATE/Bug_Report.yml

@@ -8,7 +8,7 @@ body:
       value: |
         > This bug tracker is monitored by Windows Package Manager development team and other technical folks.
         > 
-        > **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**.
+        > **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to GitHub issues**.
         > Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue.
         >
         > If this is an application crash, please also provide a Feedback Hub submission link if at all possible so we can find your diagnostic data on the backend.

.github/actions/spelling/README.md

@@ -0,0 +1,17 @@
+# check-spelling/check-spelling configuration
+
+File | Purpose | Format | Info
+-|-|-|-
+[dictionary.txt](dictionary.txt) | Replacement dictionary (creating this file will override the default dictionary) | one word per line | [dictionary](https://github.com/check-spelling/check-spelling/wiki/Configuration#dictionary)
+[allow.txt](allow.txt) | Add words to the dictionary | one word per line (only letters and `'`s allowed) | [allow](https://github.com/check-spelling/check-spelling/wiki/Configuration#allow)
+[reject.txt](reject.txt) | Remove words from the dictionary (after allow) | grep pattern matching whole dictionary words | [reject](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-reject)
+[excludes.txt](excludes.txt) | Files to ignore entirely | perl regular expression | [excludes](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-excludes)
+[only.txt](only.txt) | Only check matching files (applied after excludes) | perl regular expression | [only](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-only)
+[patterns.txt](patterns.txt) | Patterns to ignore from checked lines | perl regular expression (order matters, first match wins) | [patterns](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-patterns)
+[candidate.patterns](candidate.patterns) | Patterns that might be worth adding to [patterns.txt](patterns.txt) | perl regular expression with optional comment block introductions (all matches will be suggested) | [candidates](https://github.com/check-spelling/check-spelling/wiki/Feature:-Suggest-patterns)
+[line_forbidden.patterns](line_forbidden.patterns) | Patterns to flag in checked lines | perl regular expression (order matters, first match wins) | [patterns](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-patterns)
+[expect.txt](expect.txt) | Expected words that aren't in the dictionary | one word per line (sorted, alphabetically) | [expect](https://github.com/check-spelling/check-spelling/wiki/Configuration#expect)
+[advice.md](advice.md) | Supplement for GitHub comment when unrecognized words are found | GitHub Markdown | [advice](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-advice)
+
+Note: you can replace any of these files with a directory by the same name (minus the suffix)
+and then include multiple files inside that directory (with that suffix) to merge multiple files together.

.github/actions/spelling/advice.md

@@ -0,0 +1,26 @@
+<!-- See https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-advice --> <!-- markdownlint-disable MD033 MD041 -->
+<details><summary>If the flagged items are :exploding_head: false positives</summary>
+
+If items relate to a ...
+
+* binary file (or some other file you wouldn't want to check at all).
+
+  Please add a file path to the `excludes.txt` file matching the containing file.
+
+  File paths are Perl 5 Regular Expressions - you can [test](
+https://www.regexplanet.com/advanced/perl/) yours before committing to verify it will match your files.
+
+  `^` refers to the file's path from the root of the repository, so `^README\.md$` would exclude [README.md](
+../tree/HEAD/README.md) (on whichever branch you're using).
+
+* well-formed pattern.
+
+  If you can write a [pattern](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples:-patterns) that would match it,
+  try adding it to the `patterns.txt` file.
+
+  Patterns are Perl 5 Regular Expressions - you can [test](
+https://www.regexplanet.com/advanced/perl/) yours before committing to verify it will match your lines.
+
+  Note that patterns can't match multi-line strings.
+
+</details>

.github/actions/spelling/allow.txt

@@ -0,0 +1,121 @@
+admins
+config
+src
+README
+Unicode
+Uncomment
+Uwp
+ETests
+NSwag
+UInt
+Withx
+apps
+appwiz
+appx
+arp
+aspnetcore
+bbwe
+checkbox
+checkboxes
+cim
+cimv
+cla
+codeowner
+codeowners
+coenraads
+dbaeumer
+devdocs
+eamodio
+echarts
+ecmel
+ELSPROBLEMS
+ephemoral
+esbenp
+Fancyzones
+formulahendry
+fynn
+gdk
+github
+gitversion
+globaltool
+Hmmss
+Hmmss
+https
+Icm
+inaries
+ionide
+JDK
+jquery
+Kitware
+kohler
+linting
+LLVM
+Mfor
+mhutchie
+microsoft
+MMdd
+msftbot
+msjsdiag
+msstore
+msvc
+mubaidr
+NOLOGO
+NOLOGO
+nonexistentpackage
+numpy
+NVM
+opencode
+opensource
+pkief
+powertoys
+prerel
+pscustomobject
+psobject
+Ptr
+pwa
+PWAs
+pylance
+reduxjs
+requ
+restsource
+ritwickdey
+tastejs
+todomvc
+tokio
+toolsai
+toolset
+UAC
+ubuntu
+uilt
+unassign
+uninstall
+uninstaller
+uninstalls
+upvote
+videojs
+vsconfig
+vscpp
+vsextensions
+vsixmanifest
+vspackage
+vuejs
+wcr
+website
+websites
+wekyb
+whatif
+wildcards
+winappdev
+Windo
+winget
+winui
+Wnd
+workaround
+workflows
+worktree
+xffff
+yml
+zhuangtongfa
+DWM
+tzautoupdate
+Usb