docs: bump contributors per line down to 8

fmoko · web-flow · commit 9ea089a5d984 · 2020-04-12T00:47:24.000+02:00
diff --git a/.all-contributorsrc b/.all-contributorsrc
@@ -314,7 +314,7 @@
       ]
     }
   ],
-  "contributorsPerLine": 10,
+  "contributorsPerLine": 8,
   "projectName": "rustlings",
   "projectOwner": "fmoko",
   "repoType": "github",
