docs: create page for GitHub generator package - #2127

* Add a docs site for `changesets` (changesets#1512)

Co-authored-by: bluwy <bjornlu.dev@gmail.com>

* Update docs

* Remove docsearch dependencies

* Adjust colors

* Move pages

* Improve code blocks

* Add group icons

* Add head tags

* Fix lint error

* Apply suggestions from code review

Co-authored-by: Adam Haglund <adam@haglund.dev>

* Simplify main readme

* Add Netlify stuff

* Update picomatch links

* packageManager with h4sh

* update local node version

* Fix lint

* Rewrite intro pages

- rewrite getting-started
- rewrite concepts -> origins
- rewrite common-questions -> faq
- delete what-are-changesets (covered in getting-started)
- delete dictionary (explain everything inline where possible)

* Fix site build

* Tweak styles

* Improve faq

* Update automating-changesets

* Update acknowledgements

* Update config page

* Improve getting-started

* Sync code groups

* Update cli

* Update CLI page

* Automate CLI page

* Rename origins to why

* Rename technical decisions

* Move experimental options to config page

* Add changeset file icon

* Update fixed and linked packages docs

* Flatten guide folder

* Re-order sections

* Update why

* Update changelog format

* Add customize commit page

* Rewrite prereleases

* Use generator for changelog and commit

* Separate versioning and publishing guide

* Publish first time

* Update snapshot releases

* Fix git tag

* Remove versioning-apps because it's clunky

* Add backport guide

* Fix netlify build

* Update og description

* Update readme

* Update `snapshot.useCalculatedVersion` docs

* Fix install

* clarify and explain publishing new packages and their dist-tags

* reorder package managers

* add note regarding pnpm

* try to clarify separate-branch prerelease flow

make seperate-branch flow easier to distinguish
re-order parts for clarity

* clarify that `exit` should be run on the separate branch

* Fix lint

* Add pm info and commit-short docs

* Update CLI page

* Document `publishConfig.directory`

fix changesets#733

* Add simple section for deleting package

fix changesets#1416

* Document nightly usecase and pkg.pr.new

fix changesets#1091

* Document accidental new package publish

fix changesets#756

Co-authored-by: Melanie Seltzer <melanieseltzer1@gmail.com>

* Update git-tag docs

* docs: make init command interactive (changesets#2088)

* Add packages pages

* docs: create page for GitHub generator package (changesets#2127)

* Add warnings for old docs pages

* Update changelog github docs

* Add more popular-ish packages docs

* Tweak wording

* Add basic migration page

* docs: update and enhance comparison to other tools (changesets#2126)

* update pnpm

* update vitepress

* add changes from changesets#2150

Co-Authored-By: Emmet Moore <130148281+emmet-opinionx@users.noreply.github.com>

* Add blog pages and og images (changesets#2154)

* remove unnecessary property

* Add private packages docs

Co-authored-by: Emelia Smith <ThisIsMissEm@users.noreply.github.com>

* Update as beyond npm

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Co-authored-by: Akino <akinochen@foxmail.com>
Co-authored-by: Adam Haglund <adam@haglund.dev>
Co-authored-by: Mateusz Burzyński <mateuszburzynski@gmail.com>
Co-authored-by: Melanie Seltzer <melanieseltzer1@gmail.com>
Co-authored-by: Felix Schneider <99918022+trueberryless@users.noreply.github.com>
Co-authored-by: Emmet Moore <130148281+emmet-opinionx@users.noreply.github.com>
Co-authored-by: Emelia Smith <ThisIsMissEm@users.noreply.github.com>