Restore nested nav

Author: theletterf

config/navigation.yml

@@ -335,21 +335,24 @@ toc:
         path_prefix: reference/opentelemetry
         children:
           - toc: elastic-agent://reference/edot-collector
-            path_prefix: reference/edot-collector
-          - toc: apm-agent-android://reference/edot-android
-            path_prefix: reference/edot-sdks/android
-          - toc: elastic-otel-dotnet://reference/edot-dotnet
-            path_prefix: reference/edot-sdks/dotnet
-          - toc: apm-agent-ios://reference/edot-ios
-            path_prefix: reference/edot-sdks/ios
-          - toc: elastic-otel-java://reference/edot-java
-            path_prefix: reference/edot-sdks/java
-          - toc: elastic-otel-node://reference/edot-node
-            path_prefix: reference/edot-sdks/node
-          - toc: elastic-otel-php://reference/edot-php
-            path_prefix: reference/edot-sdks/php
-          - toc: elastic-otel-python://reference/edot-python
-            path_prefix: reference/edot-sdks/python
+            path_prefix: reference/opentelemetry/edot-collector
+          - toc: opentelemetry://reference/edot-sdks
+            path_prefix: reference/opentelemetry/edot-sdks
+            children:
+              - toc: apm-agent-android://reference/edot-android
+                path_prefix: reference/opentelemetry/edot-sdks/android
+              - toc: elastic-otel-dotnet://reference/edot-dotnet
+                path_prefix: reference/opentelemetry/edot-sdks/dotnet
+              - toc: apm-agent-ios://reference/edot-ios
+                path_prefix: reference/opentelemetry/edot-sdks/ios
+              - toc: elastic-otel-java://reference/edot-java
+                path_prefix: reference/opentelemetry/edot-sdks/java
+              - toc: elastic-otel-node://reference/edot-node
+                path_prefix: reference/opentelemetry/edot-sdks/node
+              - toc: elastic-otel-php://reference/opentelemetry/edot-php
+                path_prefix: reference/opentelemetry/edot-sdks/php
+              - toc: elastic-otel-python://reference/edot-python
+                path_prefix: reference/opentelemetry/edot-sdks/python
 
       # Ingestion tools
       # https://github.com/elastic/docs-content/blob/main/reference/ingestion-tools/toc.yml