Meteor Guide React link update

CONTRIBUTING.md

@@ -27,7 +27,7 @@ Let us know how we can make the contribution process easier. We want to find the
 
 ## Pull Requests
 
-[Create a pull request](https://help.github.com/articles/creating-a-pull-request/) to propose and collaborate on changes to Reaction. These changes are proposed in a PR branch, and are reviewed before merge acceptance into `development` for release.
+[Create a pull request](https://help.github.com/articles/creating-a-pull-request/) to propose and collaborate on changes to Reaction. These changes are proposed in a PR branch, and are reviewed before merge acceptance into `master` for release.
 
 -   Should reference an issue if one exists, or provide detailed information on the goal of the PR.
 -   Pass both [acceptance tests and unit testing](https://docs.reactioncommerce.com/reaction-docs/master/testing-reaction). New functionality should include new tests.

imports/plugins/core/ui/client/helpers/react-template-helper.js

@@ -1,4 +1,4 @@
-// http://react-in-meteor.readthedocs.org/en/latest/react-template-helper/
+// https://guide.meteor.com/react.html#using-with-blaze
 import React from "react";
 import ReactDOM from "react-dom";
 import _ from "lodash";