Use react and react-native as peer dependencies only

Author: quekshuy

package.json

@@ -12,9 +12,7 @@
     "url": "git+https://github.com/padlet/react-native-draw-canvas.git",
     "baseUrl": "https://github.com/padlet/react-native-draw-canvas"
   },
-  "keywords": [
-    "react-native"
-  ],
+  "keywords": ["react-native"],
   "author": {
     "name": "Colin Teahan",
     "email": "colin@padlet.com"
@@ -27,8 +25,6 @@
     "react-native": "*"
   },
   "devDependencies": {
-    "react": "^16.9.0",
-    "react-native": "^0.61.5",
     "typescript": "^3.7.5"
   }
 }