add other docs to the sidebar as well

Signed-off-by: Aramis <sennyeyaramis@gmail.com>

docs/openapi/generate-client.md

@@ -1,3 +1,9 @@
+---
+id: generate-client
+title: Generate a client from your OpenAPI spec
+description: Documentation on how to create a client for a given OpenAPI spec
+---
+
 ## How to generate a client with `repo-tools schema openapi generate-client`?
 
 ### Prerequisites

docs/openapi/test-case-validation.md

@@ -1,3 +1,9 @@
+---
+id: test-case-validation
+title: Validate your OpenAPI spec against test data
+description: Documetnation on how to use the `schema openapi test` command.
+---
+
 ## OpenAPI Validation using Test Cases
 
 This is primarily performed by `backstage-repo-tools schema openapi test`. Any errors found in the generated specs can be either

microsite/sidebars.json

@@ -252,7 +252,9 @@
         "type": "category",
         "label": "OpenAPI",
         "items": [
-          "openapi/01-getting-started"
+          "openapi/01-getting-started",
+          "openapi/generate-client",
+          "openapi/test-case-validation"
         ]
       },
       {