build: add script to generate readme files (#1105)

#### Motivation

I want a simplier command to generate the readme files. `npm run docs`
after running `npm run build`

#### Modification

- add a `docs` script

#### Checklist

_If not applicable, provide explanation of why._

- [ ] Tests updated
- [ ] Docs updated
- [ ] Issue linked in Title

.github/workflows/push.yml

@@ -10,7 +10,7 @@ jobs:
 
  - name: Generate Readme
  run: |
- node build/src/readme/readme.generate.js
+ npm run docs
 
  # Validate no READMEs have been updated
  - name: Validate Readme generation

package.json

@@ -20,6 +20,7 @@
  },
  "scripts": {
  "build": "tsc",
+ "docs": "node build/src/readme/readme.generate.js",
  "lint": "npx eslint . --ignore-path .gitignore",
  "test": "node --test build/"
  },