docs: add all contributor cli

package.json

@@ -2,6 +2,8 @@
   "name": "static-cms",
   "private": true,
   "scripts": {
+    "contributors:add": "all-contributors add",
+    "contributors:generate": "all-contributors generate",
     "build": "lerna run build --scope @staticcms/core --scope @staticcms/app",
     "build:demo": "lerna run build --scope @staticcms/demo",
     "build:docs": "cd packages/docs && yarn build",
@@ -19,6 +21,7 @@
     "type-check": "lerna run type-check --scope @staticcms/core"
   },
   "devDependencies": {
+    "all-contributors-cli": "6.24.0",
     "husky": "8.0.3",
     "lerna": "6.4.1",
     "lint-staged": "13.1.1",