Merge pull request #164 from pagesource/feature/contributor-list

readme file case update

Author: vinodloha

.all-contributorsrc

@@ -4,7 +4,7 @@
   "repoType": "github",
   "repoHost": "https://github.com",
   "files": [
-    "README.md"
+    "readme.md"
   ],
   "imageSize": 100,
   "commit": true,
@@ -165,4 +165,4 @@
     }
   ],
   "contributorsPerLine": 7
-}
+}