Update Tsonga dataset card

README.md

@@ -0,0 +1,61 @@
+---
+language:
+- ts
+license: cc-by-sa-3.0
+pretty_name: Plaintext Wikipedia (Tsonga)
+---
+
+# Plaintext Wikipedia (Tsonga)
+
+Compressed plaintext articles from [Tsonga Wikipedia](https://dumps.wikimedia.org/tswiki/latest). One current main-namespace revision per non-redirect article; titles and cleaned text are stored as UTF-8 in independent gzip shards.
+
+**Produced and maintained by [cheeseonamonkey/PlainTextWikipedia](https://github.com/cheeseonamonkey/PlainTextWikipedia).**
+
+**Build status: COMPLETE — 1/1 root shards recovered (1 leaf archives).** All planned page ranges recovered.
+
+## Format
+
+Each `.txt.gz` shard has three lines per article (title, single-line body, blank separator):
+
+```text
+Article title
+Cleaned article body
+
+Next title
+Next article body
+
+```
+
+Shard files are normally named `tswiki_01_of_NN.txt.gz`, etc. If one shard fails, recovery splits it into named halves like `tswiki_01a_of_NN.txt.gz` and `tswiki_01b_of_NN.txt.gz`; a failing half can split again (`01ba`, `01bb`, etc.). Only successful, non-overlapping leaves are published.
+
+The machine-readable coverage file `data/build-manifest.json` records which roots and subranges completed. Always check its `complete` flag before treating a dataset as exhaustive. These are raw text archives, **not** structured rows with `title` and `body` fields in the Hugging Face `datasets` API.
+
+## Example: download and read
+
+```python
+import gzip
+from huggingface_hub import HfApi, hf_hub_download
+
+repo = "ffatty/plaintext-wikipedia-full-tsonga"
+files = sorted(
+    path for path in HfApi().list_repo_files(repo, repo_type="dataset")
+    if path.startswith("data/") and path.endswith(".txt.gz")
+)
+path = hf_hub_download(repo, filename=files[0], repo_type="dataset")
+
+with gzip.open(path, "rt", encoding="utf-8") as stream:
+    title = stream.readline().rstrip("\n")
+    body = stream.readline().rstrip("\n")
+    print(title, body[:200])
+```
+
+## Sources and attribution
+
+1. [cheeseonamonkey/PlainTextWikipedia](https://github.com/cheeseonamonkey/PlainTextWikipedia) — maintained converter and publisher.
+2. [daveshap/PlainTextWikipedia](https://github.com/daveshap/PlainTextWikipedia) — original upstream project (unmaintained).
+3. [Wikimedia dumps](https://dumps.wikimedia.org/tswiki/latest) — article source.
+
+Wikipedia content is released under Creative Commons Attribution-ShareAlike (CC BY-SA); the conversion code is MIT licensed. Follow the applicable Wikimedia reuse requirements, including author attribution.
+
+---
+Generated by [cheeseonamonkey/PlainTextWikipedia](https://github.com/cheeseonamonkey/PlainTextWikipedia). Source data: Wikimedia dumps.