chore(README): update missing step in compiler-cli docs README

modules/@angular/compiler-cli/README.md

@@ -81,6 +81,8 @@ At a high level, this program
 ```
 # Build angular2 and the compiler
 ./build.sh
+# Copy over the package so we can test the compiler tests
+$ cp tools/@angular/tsc-wrapped/package.json dist/tools/@angular/tsc-wrapped
 # Run the test once
 # (First edit the LINKABLE_PKGS to use npm link instead of npm install)
 $ ./scripts/ci-lite/offline_compiler_test.sh