Update links to point to v4-dev or main branches

js/tests/README.md

@@ -25,7 +25,7 @@ To run the unit test suite via a real web browser, open `index.html` in the brow
 * Each test should have a unique name clearly stating what unit is being tested.
 * Each test should test only one unit per test, although one test can include several assertions. Create multiple tests for multiple units of functionality.
 * Each test should begin with [`assert.expect`](https://api.qunitjs.com/assert/expect/) to ensure that the expected assertions are run.
-* Each test should follow the project's [JavaScript Code Guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md#js)
+* Each test should follow the project's [JavaScript Code Guidelines](https://github.com/twbs/bootstrap/blob/v4-dev/.github/CONTRIBUTING.md#js)
 
 ## Code coverage
 

js/tests/index.html

@@ -46,7 +46,7 @@
         'contextmenu'
       ].forEach(function(eventAlias) {
         $.fn[eventAlias] = function() {
-          throw new Error('Using the ".' + eventAlias + '()" method is not allowed, so that Bootstrap can be compatible with custom jQuery builds which exclude the "event aliases" module that defines said method. See https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md#js')
+          throw new Error('Using the ".' + eventAlias + '()" method is not allowed, so that Bootstrap can be compatible with custom jQuery builds which exclude the "event aliases" module that defines said method. See https://github.com/twbs/bootstrap/blob/v4-dev/.github/CONTRIBUTING.md#js')
         }
       })