Add README

README.md

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+---
+license: other
+task_categories:
+- text-classification
+language:
+- en
+- ru
+- hi
+tags:
+- telegram
+- osint
+- parquet
+---
+
+# Telegram
+
+Parquet conversion of the Telegram user dataset.
+
+## Contents
+
+- `parquet/users/` — 146 parquet parts, ~1.2 GB total, 72,601,073 rows
+
+## Schema
+
+| column | type |
+|---|---|
+| user_id | TEXT (primary key) |
+| phone | TEXT |
+| username | TEXT |
+| first_name | TEXT |
+| last_name | TEXT |
+| email | TEXT |
+
+## Usage
+
+```python
+import duckdb
+duckdb.sql("SELECT * FROM 'parquet/users/users_*.parquet' WHERE phone = '...' LIMIT 10")
+```