Fix typo

Author: soywiz

_includes/install_korge_forge.html

@@ -71,7 +71,7 @@
                             <div class="tab-pane" style="padding:8px;" id="windows" role="tabpanel"
                                 aria-labelledby="windows-tab">
                                 <div style="margin-bottom: 16px;">
-                                    Press <kbd>win+x</kbd>, then type <code>cmd</code> and press return, then copy and paste the command from below in the opened window and press return again. This will open the installer.
+                                    Press <kbd>win+r</kbd>, then type <code>cmd</code> and press return, then copy and paste the command from below in the opened window and press return again. This will open the installer.
                                 </div>
 
                                 <figure class="codeblock">