docs: update .all-contributorsrc [skip ci]

Author: allcontributors[bot]

.all-contributorsrc

@@ -104,6 +104,17 @@
  "contributions": [
  "code"
  ]
+ },
+ {
+ "login": "ephremdeme",
+ "name": "Ephrem Demelash",
+ "avatar_url": "https://avatars1.githubusercontent.com/u/38384199?v=4",
+ "profile": "http://tirufat.com",
+ "contributions": [
+ "code",
+ "design",
+ "ideas"
+ ]
  }
  ],
  "contributorsPerLine": 7,