Add OpenSERP SDK usage examples

examples/content/python-extract-markdown/main.py

@@ -0,0 +1,16 @@
+from openserp import OpenSERP
+
+url = "https://go.dev/doc/"
+output_file = "extracted.md"
+
+# Hosted API instead? Get a key at https://openserp.org/dashboard/keys:
+#   with OpenSERP(api_key="<YOUR_API_TOKEN>", timeout=60.0) as client:
+with OpenSERP(base_url="http://localhost:7000", timeout=60.0) as client:
+    # /extract turns a single page into clean Markdown (or plain text).
+    result = client.extract(url=url, mode="auto", clean=True)
+
+content = result.markdown or result.text or ""
+with open(output_file, "w", encoding="utf-8") as handle:
+    handle.write(content)
+
+print(f"Extracted {len(content)} characters from {url} into {output_file}")