Update metadata - hash field added

README.md

@@ -1,48 +1,9 @@
 ---
 tags:
-- name
-- lang
-- hash
-- iso-3166
-dataset_info:
-  features:
-  - name: code
-    dtype: string
-  - name: status
-    dtype: string
-  - name: name_en
-    dtype: string
-  - name: name_ru
-    dtype: string
-  - name: name_zh
-    dtype: string
-  - name: names_en_alt
-    list: string
-  - name: names_ru_alt
-    list: string
-  - name: names_zh_alt
-    list: string
-  - name: names_other
-    list: string
-  - name: links
-    list: string
-  - name: note
-    dtype: string
-  - name: lang
-    dtype: string
-  - name: name
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 157315
-    num_examples: 676
-  download_size: 123433
-  dataset_size: 157315
-configs:
-- config_name: default
-  data_files:
-  - split: train
-    path: data/train-*
+  - name
+  - lang
+  - hash
+  - iso-3166
 ---
 
 # ISO 3166-1 Alpha-2 Codes with Lang and Hash
@@ -51,55 +12,9 @@ Country/region codes with language selection and deterministic hashing.
 
 ## Fields
 
-- **code** (string): ISO 3166-1 alpha-2 country code (e.g., 'US', 'RU', 'CN')
-- **status** (string): Official status (official, deprecated, etc.)
-- **name** (string): Primary name in selected language (en, ru, or zh)
-- **name_en** (string): English name
-- **name_ru** (string): Russian name
-- **name_zh** (string): Chinese name
-- **lang** (string): Language of primary name field (en, ru, or zh)
-  - Determined by region: Slavic regions → ru, Sinophone regions → zh, rest → en
-- **hash** (string): SHA256 hash of `name` field (64 hex chars)
-  - Used for sharding and collision detection
-  - Deterministic: same name always produces same hash
-- **names_en_alt** (list): Alternative English names
-- **names_ru_alt** (list): Alternative Russian names
-- **names_zh_alt** (list): Alternative Chinese names
-- **names_other** (list): Names in other languages
-- **links** (list): Reference links
-- **note** (string): Additional notes
+- **code**: ISO 3166-1 alpha-2 country code
+- **name**: Primary name in selected language (en, ru, or zh)
+- **lang**: Language of primary name field
+- **hash**: SHA256 hash of name field (64 hex chars)
 
-## Language Rule
-
-Languages are determined by hardcoded region mapping:
-- **Slavic (lang: ru)**: RU, UA, BY, KZ, UZ, TJ, KG, TM, GE, AZ, AM, MD, LT, LV, EE, RS, ME, BA, HR, SI, SK, CZ, PL, BG, MK, FI
-- **Sinophone (lang: zh)**: CN, TW, HK, MO, JP, KR, KP, MN, SG, VN, LA, TH, MM, KH, MY, BN
-- **Default (lang: en)**: All other regions
-
-## Hash Field
-
-The `hash` field is the SHA256 hash of the `name` field:
-- Format: 64-character hexadecimal string
-- Deterministic: same name always produces same hash
-- Used for entry sharding in doc repositories (first 6 hex chars = shard ID)
-- Enables collision detection
-
-## Usage
-
-```python
-from datasets import load_dataset
-
-ds = load_dataset('cterdam/iso_3166-1_alpha-2', split='train')
-print(ds[0])
-# {
-#   'code': 'AD',
-#   'name': 'Andorra',
-#   'lang': 'en',
-#   'hash': '...'
-# }
-```
-
-## See Also
-
-- `cterdam/iso_3166-2`: Subdivisions with lang and hash
-- `cterdam/iata-metro`: IATA metro codes with lang and hash and coordinates
+For full documentation, see dataset README.md on HuggingFace Hub.