chore: add a README to Flipper plugin

packages/flipper-plugin-react-navigation/README.md

@@ -0,0 +1,5 @@
+# `flipper-plugin-react-navigation`
+
+Flipper plugin with developer tools for React Navigation.
+
+Installation instructions and documentation can be found on the [React Navigation website](https://reactnavigation.org/docs/6.x/devtools).

packages/flipper-plugin-react-navigation/package.json

@@ -1,6 +1,7 @@
 {
   "$schema": "https://fbflipper.com/schemas/plugin-package/v2.json",
   "name": "flipper-plugin-react-navigation",
+  "description": "Developer tools for React Navigation",
   "id": "react-navigation",
   "version": "1.1.3",
   "pluginType": "client",
@@ -19,6 +20,9 @@
     "watch": "flipper-pkg bundle --watch",
     "test": "jest --no-watchman"
   },
+  "dependencies": {
+    "shortid": "^2.2.16"
+  },
   "peerDependencies": {
     "antd": "*",
     "flipper": "*",
@@ -37,8 +41,5 @@
     "flipper-plugin": "^0.90.2",
     "react": "^17.0.1",
     "react-dom": "^17.0.1"
-  },
-  "dependencies": {
-    "shortid": "^2.2.16"
   }
 }