Prepare v0.31.1 release

Author: lkashef

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "github",
   "main": "./lib/index",
-  "version": "0.31.0",
+  "version": "0.31.1",
   "description": "GitHub integration",
   "repository": "https://github.com/atom/github",
   "license": "MIT",
@@ -207,7 +207,10 @@
     "remoteFetchProtocol": {
       "type": "string",
       "default": "https",
-      "enum": ["https", "ssh"],
+      "enum": [
+        "https",
+        "ssh"
+      ],
       "description": "Transport protocol to prefer when creating a new git remote"
     }
   },