parent page

docs/async.md

@@ -1,7 +1,7 @@
 ---
 layout: default
 title: "Async"
-parent: Core Abstraction
+parent: "Core Abstraction"
 nav_order: 5
 ---
 

docs/batch.md

@@ -1,7 +1,7 @@
 ---
 layout: default
 title: "Batch"
-parent: Core Abstraction
+parent: "Core Abstraction"
 nav_order: 4
 ---
 

docs/communication.md

@@ -1,7 +1,7 @@
 ---
 layout: default
 title: "Communication"
-parent: Core Abstraction
+parent: "Core Abstraction"
 nav_order: 3
 ---
 

docs/core_abstraction.md

@@ -0,0 +1,14 @@
+---
+layout: default
+title: "Core Abstraction"
+nav_order: 3
+has_children: true
+---
+
+## Core Abstraction
+
+- [Node](./node.md)
+- [Flow](./flow.md)
+- [Communication](./communication.md)
+- [Batch](./batch.md)
+- [Async](./async.md)

docs/flow.md

@@ -1,7 +1,7 @@
 ---
 layout: default
 title: "Flow"
-parent: Core Abstraction
+parent: "Core Abstraction"
 nav_order: 2
 ---
 

docs/node.md

@@ -1,7 +1,7 @@
 ---
 layout: default
 title: "Node"
-parent: Core Abstraction
+parent: "Core Abstraction"
 nav_order: 1
 ---