feat: TechDocs - Add vale linter to check words quality in md files. (#2631)

* fix(docs): typos which were reflacted from vale linter's command

* feat: Implement Vale linter (#2031)
Initialize .vale.ini file
Add 'lint:docs' script to package.json, to lint all md files except the ones which are located in node_modules
Generate 'vocab.txt' by using command 'yarn run lint:docs' | grep -o ''[a-z A-Z]*'' | grep -o '[a-z A-Z]*' | sort | uniq > .github/styles/vocab.txt
Add steps to github workflow 'master' to check docs quality

* chore: Separate workflow for quality checking

* chore: Added 'shx' dev dependency to support grep command in cross platform

* feat: Add script to operate same quality check process on different platform

* ignore: remove lint:docs from lint-stages which was added for experiment purpose

* fix: check-all-files on push event & check-changed-files on pull_request event

* chore(CI): triggle workflow only when there is any updates in .md file(s) on pull request

* fix: use spawnSync to solve 'The command line is too long.' error

* fix: github workflow syntax

* fix: prettier error

* chore: add vale command directly to lint-staged

* chore: use shebang for easy access

* fix: windows script issue & remove shebang

* chore: Add shebang flag

* chore: better error message related to vale

* chore: mention vale linter in documentation

* fix: spelling errors & add keywords to vocab.txt

.github/styles/vocab.txt

@@ -0,0 +1,203 @@
+abc
+Apdex
+api
+Api
+apis
+args
+asciidoc
+async
+Avro
+backrub
+Balachandran
+Bigtable
+Blackbox
+bool
+boolean
+Chai
+changeset
+changesets
+Changesets
+changset
+chanwit
+Chanwit
+cisphobia
+cissexist
+classname
+cli
+cncf
+codeblocks
+Codecov
+codehilite
+Codehilite
+codeowners
+config
+Config
+configs
+const
+cookiecutter
+css
+dariddler
+deadnaming
+destructured
+dev
+devs
+discoverability
+Discoverability
+dls
+docgen
+Dockerfile
+Dockerize
+dockerode
+Docusaurus
+eg
+Ek
+env
+Env
+eslint
+facto
+failover
+Figma
+Firekube
+Fredrik
+github
+Github
+Gitlab
+graphql
+graphviz
+Hackathons
+haproxy
+heroku
+Hostname
+http
+https
+img
+incentivised
+inlinehilite
+interop
+javascript
+Javascript
+jq
+js
+json
+jsx
+Kaewkasi
+Knex
+kubectl
+kubernetes
+learnings
+lerna
+Lerna
+magiclink
+mailto
+Malus
+md
+microsite
+middleware
+minikube
+Minikube
+misgendering
+mkdocs
+Mkdocs
+monorepo
+Monorepo
+monorepos
+msw
+namespace
+Namespaces
+neuro
+newrelic
+nginx
+Niklas
+nohoist
+nonces
+npm
+nvm
+oauth
+Oauth
+Okta
+Oldsberg
+onboarding
+Onboarding
+pagerduty
+Patrik
+Phoen
+plantuml
+Pomaceous
+postgres
+pre
+prebaked
+preconfigured
+Preprarer
+Prerequisities
+productional
+Protobuf
+proxying
+Proxying
+pygments
+pymdownx
+Raghunandan
+rankdir
+readme
+Readme
+Redash
+repo
+Repo
+repos
+rerender
+rollbar
+Rollbar
+Rollup
+Rosaceae
+rst
+rsync
+ruleset
+sam
+scaffolded
+scaffolder
+Scaffolder
+semlas
+Serverless
+Sinon
+smartsymobls
+sparklines
+Spotifiers
+spotify
+Spotify
+squidfunk
+src
+subkey
+superfences
+Superfences
+talkdesk
+Talkdesk
+tasklist
+techdocs
+templated
+templater
+Templater
+templaters
+Templaters
+Thauer
+theres
+toc
+tolerations
+Tolerations
+toolsets
+touchpoints
+ui
+upvote
+url
+utils
+validators
+Voi
+Wealthsimple
+Weaveworks
+xyz
+yaml
+Zalando
+Zhou
+Billett
+cloudbuild
+Grafana
+Iain
+Snyk

.github/workflows/docs-quality-checker.yml

@@ -0,0 +1,18 @@
+name: Check Markdown files quality
+
+on:
+  pull_request:
+    branches: [master]
+    paths:
+      - '**.md'
+
+jobs:
+  check-all-files:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: documentation quality check
+        uses: errata-ai/vale-action@v1.3.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}