Add repository type and host to contributors config

trying to match a working example I found carpentries-incubator/managing-computational-projects@0817563

Author: jlcohoon

.all-contributorsrc

@@ -1,5 +1,7 @@
 {
   "projectName": "rapid-usability-tutorial",
   "projectOwner": "carpentries-incubator",
+  "repoType": "github",
+  "repoHost": "https://github.com",
   "skipCi": true
 }