add explainations to windows users

Author: bobzhang

docs/Manual.html

@@ -4202,7 +4202,7 @@ <h3 id="_a_real_world_example_of_using_code_bsb_code"><a class="anchor" href="#_
 <p>Install peer dependencies</p>
 </li>
 <li>
-<p>Run the build</p>
+<p>On Windows, it would be <code>.\node_modules\.bin\bsb -clean-world -make-world -w</code></p>
 </li>
 </ol>
 </div>

site/docsource/Build-system-support.adoc

@@ -261,7 +261,8 @@ npm install bs-platform <2>
 ----------
 <1> Install the dependencies
 <2> Install peer dependencies
-<3> Run the build 
+<3> On Windows, it would be `.\node_modules\.bin\bsb -clean-world -make-world -w`
+
 
 You can also change the `package-specs` to have another module format, for example, tweak your `bsconfig.json`:
 [source,js]