fix header attr

docs/modules/sdk/pages/build_platform.adoc

@@ -1,12 +1,7 @@
 = build_platform
-:author: 
-:revnumber: 
-:revdate: 2016/03/17 20:48
+:revnumber: 2.0
+:revdate: 2020/07/10
 :keywords: documentation, sdk, builds, project
-:relfileprefix: ../
-:imagesdir: ..
-ifdef::env-github,env-browser[:outfilesuffix: .adoc]
-
 
 
 == Building jMonkeyEngine SDK Yourself
@@ -35,7 +30,7 @@ Make sure all necessary plugins are installed and active:
 *  In the `Repository +++<abbr title="Uniform Resource Locator">URL</abbr>+++:` textbox, type `link:https://github.com/jMonkeyEngine/jmonkeyengine[https://github.com/jMonkeyEngine/jmonkeyengine]`.
 *  Clear the `User:` and `Password:` textboxes.
 *  Click on the `Next` button.
-*  Choose the remote branch, typically “master, and click the Next button.
+*  Choose the remote branch, typically "`master`", and click the Next button.
 *  Click on the `Browse…` button to the right of the `Parent directory:` textbox to open a `Browse Local Folder` dialog.
 *  Select an empty or non-existent directory (folder) where you want to save the jMonkeyEngine sources on your hard drive.
 *  Click the `Finish` button.
@@ -70,4 +65,3 @@ Building the main freeform project copies the jME3 libraries to the sdk, so you
 
 *  In the SDK's `Projects` window, right-click on the `jMonkeyEngine SDK` project and select `Run`.
 **  The SDK you just built will start executing in a new window.
-