Update README.md

README.md

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----
-title: Insightflow
-emoji: 🏆
-colorFrom: purple
-colorTo: blue
-sdk: docker
-pinned: false
-license: apache-2.0
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+# Czech BERTopic Segmenter API
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+This Hugging Face Space runs BERTopic segmentation for Czech interviews.
+
+## Endpoint
+POST `/segment-topics`
+
+### Payload:
+```json
+{
+  "texts": ["sentence1", "sentence2", ...],
+  "starts": [1.0, 2.3, ...],
+  "ends": [2.3, 4.1, ...]
+}