message: Update CONTRIBUTING.md to recommend npx gulp
  Globally installing gulp is not necessary, running gulp with npx avoid versioning issues.
diff: @@ -35,7 +35,6 @@ When submitting a PR, please fill out the template that is presented by GitHub w
  cd Vim
  # Install the dependencies
  - npm install -g gulp-cli
  npm install
  # Open in VSCode
  @@ -46,13 +45,13 @@ When submitting a PR, please fill out the template that is presented by GitHub w
  # Or run tests by selecting the appropriate drop down option
  # Alternatively, build and run tests through gulp and npm scripts
  - gulp build # build extension
  - gulp prepare-test # build sources and tests
  + npx gulp build # build extension
  + npx gulp prepare-test # build sources and tests
  npm test # test (must close all instances of VSCode)
  # Only available if Docker is installed and running
  - gulp test # run tests inside Docker container
  - gulp test --grep testSuite # run only tests/suites filtered by js regex inside container
  + npx gulp test # run tests inside Docker container
  + npx gulp test --grep testSuite # run only tests/suites filtered by js regex inside container
  ```
  ## Code Architecture
  @@ -95,7 +94,7 @@ This is my hack to simulate a click event based API in an IDE that doesn't have
  To push a release:
  ```bash
  -gulp release --semver [SEMVER] --gitHubToken [TOKEN]
  +npx gulp release --semver [SEMVER] --gitHubToken [TOKEN]
  git push --follow-tags
  ```
  