fix(package): update mobx-react to version 6.1.8

Closes #144

Author: greenkeeper[bot]

package.json

@@ -35,7 +35,7 @@
     "markdown-it-table-of-contents": "^0.4.3",
     "markdown-it-task-lists": "^2.1.1",
     "mobx": "5.8.0",
-    "mobx-react": "5.4.3",
+    "mobx-react": "6.1.8",
     "opn": "5.4.0",
     "prop-types": "15.6.2",
     "qilin-components": "0.0.133",