Merge pull request microsoft#29948 from tomholub/patch-1

update docs: dated build cmd

Author: RyanCavanaugh

CONTRIBUTING.md

@@ -55,7 +55,7 @@ The TypeScript repository is relatively large. To save some time, you might want
 
 ### Using local builds
 
-Run `gulp build` to build a version of the compiler/language service that reflects changes you've made. You can then run `node <repo-root>/built/local/tsc.js` in place of `tsc` in your project. For example, to run `tsc --watch` from within the root of the repository on a file called `test.ts`, you can run `node ./built/local/tsc.js --watch test.ts`.
+Run `gulp` to build a version of the compiler/language service that reflects changes you've made. You can then run `node <repo-root>/built/local/tsc.js` in place of `tsc` in your project. For example, to run `tsc --watch` from within the root of the repository on a file called `test.ts`, you can run `node ./built/local/tsc.js --watch test.ts`.
 
 ## Contributing bug fixes