Fix spelling of GitHub brand name

Author: jbampton

README.md

@@ -122,7 +122,7 @@ SWT used to track ongoing development and issues in Bugzilla .
 
 ## Create a New Bug
 
-You can register bugs and feature requests in the Github Issue Tracker. Remember that contributions are always welcome!
+You can register bugs and feature requests in the GitHub Issue Tracker. Remember that contributions are always welcome!
 - [View existing SWT issues](https://github.com/eclipse-platform/eclipse.platform.swt/issues)
 - [New SWT issue](https://github.com/eclipse-platform/eclipse.platform.swt/issues/new)
 

bundles/org.eclipse.swt.tools/Oomph/platformSwt.setup

@@ -36,7 +36,7 @@
       </detail>
       <detail
           key="label">
-        <value>Platform SWT Github Repository</value>
+        <value>Platform SWT GitHub Repository</value>
       </detail>
       <detail
           key="target">
@@ -170,7 +170,7 @@
         </detail>
         <detail
             key="label">
-          <value>Platform Website Github Repository</value>
+          <value>Platform Website GitHub Repository</value>
         </detail>
         <detail
             key="target">