chore: update peer dependencies for React 17 (#127)

Author: themagickoala

package.json

@@ -36,7 +36,7 @@
     "react-displace": "^2.3.0"
   },
   "peerDependencies": {
-    "react": "^15.0.0 || ^16.0.0"
+    "react": ">= 15.0.0 < 18.0.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.2.3",