Moving the tier naming content from Learn to Contribute

Author: abhatt-rh

content/learn/about-pattern-tiers-types.adoc renamed to content/contribute/about-pattern-tiers-types.adoc

@@ -1,7 +1,6 @@
 ---
 menu:
-  learn:
-    parent: Workflow
+  contribute:
 title: Validated Pattern tiers
 weight: 41
 ---

content/learn/implementation.adoc renamed to content/contribute/implementation.adoc

@@ -1,7 +1,7 @@
 ---
 menu:
-  learn:
-    parent: Workflow
+  contribute:
+    parent: Validated Pattern tiers
 title: Implementation requirements
 weight: 42
 aliases: /requirements/implementation/

content/learn/maintained.adoc renamed to content/contribute/maintained.adoc

@@ -1,7 +1,7 @@
 ---
 menu:
-  learn:
-    parent: Workflow
+  contribute:
+    parent: Validated Pattern tiers
 title: Validated Patterns - Maintained tier
 weight: 45
 aliases: /requirements/maintained/

content/learn/sandbox.adoc renamed to content/contribute/sandbox.adoc

@@ -1,7 +1,7 @@
 ---
 menu:
-  learn:
-    parent: Workflow
+  contribute:
+    parent: Validated Pattern tiers
 title: Validated Patterns - Sandbox tier
 weight: 43
 aliases: /requirements/community/

content/learn/test-artefacts.adoc renamed to content/contribute/test-artefacts.adoc

@@ -1,7 +1,7 @@
 ---
 menu:
-  learn:
-    parent: Workflow
+  contribute:
+    parent: Validated Pattern tiers
 title: Testing Artefacts
 weight: 50
 aliases: /requirements/tested/

content/learn/tested.adoc renamed to content/contribute/tested.adoc

@@ -1,7 +1,7 @@
 ---
 menu:
-  learn:
-    parent: Workflow
+  contribute:
+    parent: Validated Pattern tiers
 title: Validated Patterns - Tested tier
 weight: 44
 aliases: /requirements/tested/