fix(package): update axios to version 0.19.1

Closes #6

Author: greenkeeper[bot]

package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "axios": "^0.18.0",
+    "axios": "^0.19.1",
     "react": "^16.5.2",
     "react-dom": "^16.5.2",
     "react-scripts": "3.1.0"