chore: Rename Jest example to help greenkeeper (dequelabs#871)

* chore: rename jest example to help greenkeeper

plus signs are invalid in filenames/directories

Closes dequelabs#869

* chore: add config to jest_react example

Closes dequelabs#865

Gruntfile.js

@@ -331,7 +331,7 @@ module.exports = function (grunt) {
 				},
 				src: [
 					'lib/**/*.js', 'test/**/*.js', 'build/**/*.js',
-					'doc/**/*.js', '!doc/examples/jest+react/*.js', 'Gruntfile.js',
+					'doc/**/*.js', '!doc/examples/jest_react/*.js', 'Gruntfile.js',
 					'!**/node_modules/**/*.js'
 				]
 			}

doc/examples/jest+react/README.md → doc/examples/jest_react/README.md

@@ -10,16 +10,21 @@ axe-core in Jest (using JSDOM and Enzyme).
 
 * Node must be installed; please follow the directions at http://www.nodejs.org
   to install it.
-* Move to the `doc/examples/jest+react` directory
+* Move to the `doc/examples/jest_react` directory
 * `npm install` to install dependencies
 
 ## To run the example ##
 
-* Move to the `doc/examples/jest+react` directory
+* Move to the `doc/examples/jest_react` directory
 * `npm test` to run Jasmine
 
 You should see output indicating that the tests ran successfully, with zero
-failures.
+failures. 
+
+Note: to work better with JSDOM (which has limited support for necessary DOM APIs),
+the color-contrast and link-in-text-block rules have been disabled in this example.
+You can test for these rules more reliably using full browser DOM integration
+testing using [axe-webdriverjs](https://github.com/dequelabs/axe-webdriverjs).
 
 ## To modify the example ##
 

doc/examples/jest+react/link.test.js → doc/examples/jest_react/link.test.js

@@ -10,7 +10,13 @@ test('Link has no aXe violations', (done) => {
   );
   const linkNode = linkComponent.getDOMNode();
 
-  axe.run(linkNode, (err, { violations }) => {
+  const config = {
+    "rules": {
+      "color-contrast": { enabled: false },
+      "link-in-text-block": { enabled: false }
+    }
+  }
+  axe.run(linkNode, config, (err, { violations }) => {
     expect(err).toBe(null);
     expect(violations).toHaveLength(0);
     done();

greenkeeper.json

@@ -3,7 +3,7 @@
     "default": {
       "packages": [
         "doc/examples/jasmine/package.json",
-        "doc/examples/jest+react/package.json",
+        "doc/examples/jest_react/package.json",
         "doc/examples/mocha/package.json",
         "doc/examples/phantomjs/package.json",
         "doc/examples/qunit/package.json",