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

package.json

@@ -16,6 +16,7 @@
     "test": "lerna run test --since origin/master -- --coverage",
     "test:all": "lerna run test -- --coverage",
     "lint": "lerna run lint --since origin/master --",
+    "lint:docs": "node ./scripts/check-docs-quality",
     "lint:all": "lerna run lint --",
     "lint:type-deps": "node scripts/check-type-dependencies.js",
     "docgen": "lerna run docgen",
@@ -46,7 +47,8 @@
     "lerna": "^3.20.2",
     "lint-staged": "^10.1.0",
     "prettier": "^2.0.5",
-    "recursive-readdir": "^2.2.2"
+    "recursive-readdir": "^2.2.2",
+    "shx": "^0.3.2"
   },
   "husky": {
     "hooks": {
@@ -61,6 +63,9 @@
     ],
     "*.{json,md}": [
       "prettier --write"
+    ],
+    "*.md": [
+      "vale"
     ]
   },
   "jest": {