Create README.md

README.md

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+---
+dataset_info:
+  features:
+  - name: mysql_dump_file
+    dtype: binary
+license: cc-by-4.0
+pretty_name: >-
+  Hong Kong content-based (Cantonese & Traditional Chinese) text corpus (MySQL
+  Dump)
+---
+
+# Dataset Card for `hk_content_corpus_mysql`
+
+## Dataset Description
+- **Title:** Hong Kong content-based (Cantonese & Traditional Chinese) text corpus (MySQL Dump)
+- **Language:** Hong Kong Cantonese, Traditional Chinese
+- **Size:** ~49.2 GB uncompressed SQL dump (11.1 GB compressed with LZMA2)
+- **Format:** MySQL dump (`.sql`), UTF-8 encoding
+- **Source:** Crawled from public web sources (news sites, online forums, encyclopedia and restaurant reviews).
+
+## Overview
+This dataset contains a large-scale web text corpus collected for natural language processing (NLP) research, primarily focused on Hong Kong Cantonese and Traditional Chinese language usage.  
+It includes raw text data stored in a MySQL database dump file.  
+This dataset is also available at Zenodo as splited archive: https://doi.org/10.5281/zenodo.16875235
+
+SHA256 checksum of files:  
+b3b7a600ec2e2b5c6ce9ebc1e545712e696c6f6f94b78d0473486609eb7fb854  [SQL file after decompression]
+
+> ⚠ **Note:** This dataset contains the raw SQL backup.
+
+---
+
+## Intended Uses
+
+- Pretraining or fine-tuning AI language models
+- Linguistic and sociolinguistic analysis
+- Text mining research
+
+NOTE: HKNSL became effective since 2020-6-30, which can create bias on user content created afterwards. Those portion of data should be used with caution.