added fork to org

lib/Repository.js

@@ -494,6 +494,18 @@ class Repository extends Requestable {
       return this._request('POST', `/repos/${this.__fullname}/forks`, null, cb);
    }
 
+   /**
+    * Fork a repository to an organization
+    * @see https://developer.github.com/v3/repos/forks/#create-a-fork
+    * @param {String} org - organization where you'd like to create the fork.
+    * @param {Requestable.callback} cb - will receive the information about the newly created fork
+    * @return {Promise} - the promise for the http request
+    *
+    */
+   forkToOrg(org, cb) {
+      return this._request('POST', `/repos/${this.__fullname}/forks?organization=${org}`, null, cb);
+   }
+
    /**
     * List a repository's forks
     * @see https://developer.github.com/v3/repos/forks/#list-forks

test/repository.spec.js

@@ -112,6 +112,10 @@ describe('Repository', function() {
          remoteRepo.fork(assertSuccessful(done));
       });
 
+      it('should fork repo to org', function(done) {
+         remoteRepo.forkToOrg('test-org', assertSuccessful(done));
+      });
+
       it('should list forks of repo', function(done) {
          remoteRepo.listForks(assertSuccessful(done, function(err, forks) {
             expect(forks).to.be.an.array();