add note about secret into readme

Author: sh-rp

dlt_openapi/renderer/default/__init__.py

@@ -54,6 +54,7 @@ def run(self, openapi: OpenapiParser, dry: bool = False) -> None:
             class_name=lambda x: misc.ClassName(x, ""),
             package_name=self.package_name,
             project_name=self.config.project_name,
+            credentials=self.openapi.detected_global_security_scheme,
         )
 
         if dry:
@@ -113,9 +114,7 @@ def _build_dlt_config(self) -> None:
         secrets_template = self.env.get_template("dlt_secrets.toml.j2")
         secrets_path = config_dir / "secrets.toml"
         secrets_path.write_text(
-            secrets_template.render(
-                credentials=self.openapi.detected_global_security_scheme,
-            ),
+            secrets_template.render(),
             encoding=FILE_ENCODING,
         )
 
@@ -132,7 +131,6 @@ def _render_source(self) -> str:
             source_name=self.source_name,
             endpoint_collection=self.openapi.endpoints,
             imports=[],
-            credentials=self.openapi.detected_global_security_scheme,
             global_paginator_config=(
                 self.openapi.detected_global_pagination.paginator_config
                 if self.openapi.detected_global_pagination

dlt_openapi/renderer/default/templates/README.md.j2

@@ -6,6 +6,12 @@ Created with [dlt-openapi](https://github.com/dlt-hub/dlt-openapi) v. {{version}
 * https://github.com/dlt-hub/dlt
 * https://github.com/dlt-hub/dlt-openapi
 
+{% if credentials %}
+## Credentials
+This API uses {{ credentials.type }} authentication. Please fill in the required variable {{ credentials.detected_secret_name }} in your 
+secrets.toml.
+{% endif %}
+
 ## Available resources
 {% for endpoint in endpoint_collection.all_endpoints_to_render %}
 * {{ endpoint.detected_resource_name }}