Update README.md (#175)

fix the string run_install example

Author: github-actions[bot]

README.md

@@ -113,7 +113,7 @@ jobs:
       - uses: step-security/action-setup@v4
         with:
           version: 10
-          run_install:
+          run_install: |
             - recursive: true
               args: [--strict-peer-dependencies]
             - args: [--global, gulp, prettier, typescript]