message: Fix typo in JestObjectAPI.md
  * Update JestObjectAPI.md
  small typo :)
  * Update JestObjectAPI.md
diff: @@ -158,7 +158,7 @@ as well as all the modules that it imports._
  Modules that are mocked with `jest.mock` are mocked only for the file that calls
  `jest.mock`. Another file that imports the module will get the original
  -implementation even if run after the test file that mocks the module.
  +implementation even if it runs after the test file that mocks the module.
  Returns the `jest` object for chaining.
  