docs(toh-5): revert snippet indentation (#3487)

Author: Foxandxss

public/docs/ts/latest/tutorial/toh-pt5.jade

@@ -57,12 +57,12 @@ include ../../../_includes/_see-addr-bar
   ## Keep the app transpiling and running
   Enter the following command in the terminal window:
 
-  code-example(language="sh" class="code-shell").
-    npm start
+code-example(language="sh" class="code-shell").
+  npm start
 
-  :marked
-    This command runs the TypeScript compiler in "watch mode", recompiling automatically when the code changes.
-    The command simultaneously launches the app in a browser and refreshes the browser when the code changes.
+:marked
+  This command runs the TypeScript compiler in "watch mode", recompiling automatically when the code changes.
+  The command simultaneously launches the app in a browser and refreshes the browser when the code changes.
 
 :marked
   You can keep building the Tour of Heroes without pausing to recompile or refresh the browser.