fix(package): update axios to version 0.19.1

Closes #9

Author: greenkeeper[bot]

package.json

@@ -7,7 +7,7 @@
     "react-dom": "^16.3.0"
   },
   "dependencies": {
-    "axios": "^0.18.0",
+    "axios": "^0.19.1",
     "lodash": "^4.17.11"
   },
   "devDependencies": {