Updated Home (markdown)

Home.md

@@ -1,14 +1,30 @@
-## Welcome to the Spring Framework Wiki!
+# Welcome to the Spring Framework Wiki!
+
+## General
 
 * [[What's New in the Spring Framework]]
 * [[Downloading Spring artifacts]]
+* [[Spring repository FAQ]]
 * [[Building a distribution with dependencies]]
+
+## Migrating from earlier versions
+
+* [[Migrating to Spring Framework 5.x]]
+* [[Migrating to Spring Framework 4.x]]
+* [[Migrating to Spring Framework 3.x]]
+
+## Development
+
 * [[Contributor guidelines]]
-* [[Spring Framework Code Style]]
-* [[Gradle build and release FAQ]]
-* [[autorepo version updating]]
-* [[Spring repository FAQ]]
 * [[The lifecycle of an issue]]
+* [[Spring Framework Code Style]]
 * [[Manually merging pull requests]]
-* [[Migrating from earlier versions of the Spring Framework]]
+
+## Concepts
+
 * [[Spring Annotation Programming Model]]
+
+## Release process
+
+* [[Gradle build and release FAQ]]
+* [[autorepo version updating]]