module as source doc fixes

docs/templates/model_app/data.md

@@ -0,0 +1,3 @@
+# Data
+
+::: openapi_first.templates.model_app.data

docs/templates/model_app/index.md

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+# Model App
+
+::: openapi_first.templates.model_app

docs/templates/model_app/main.md

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+# Main
+
+::: openapi_first.templates.model_app.main

docs/templates/model_app/models.md

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+# Models
+
+::: openapi_first.templates.model_app.models

docs/templates/model_app/routes.md

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+# Routes
+
+::: openapi_first.templates.model_app.routes

docs/templates/model_app/test_model_app.md

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+# Test Model App
+
+::: openapi_first.templates.model_app.test_model_app