Update Plaincode CNL dataset card

README.md

@@ -67,12 +67,31 @@ Each row contains:
 
 ```json
 {
-  "accepted_rows": 0,
-  "completed_shards": [],
+  "accepted_rows": 50,
+  "completed_shards": [
+    "train-00000.jsonl.gz"
+  ],
   "duplicates": 0,
-  "family_counts": {},
-  "filter_reasons": {},
-  "filtered_candidates": 0,
+  "family_counts": {
+    "async": 1,
+    "classes": 29,
+    "comprehensions": 5,
+    "context_managers": 5,
+    "exceptions": 14,
+    "functions": 43,
+    "generators": 2,
+    "imports": 44,
+    "lambda": 2,
+    "loops": 20
+  },
+  "filter_reasons": {
+    "auto_generated": 5,
+    "skipped_path_pattern": 4,
+    "syntax_error:Missing parentheses in call to 'print'. Did you mean print(...)?": 5,
+    "too_large": 8,
+    "too_small": 2
+  },
+  "filtered_candidates": 24,
   "hf_repo_id": "CircularBalls/plaincode-cnl-100k",
   "languages": [
     "en",
@@ -84,9 +103,11 @@ Each row contains:
   ],
   "projection_failures": 0,
   "run_id": "run_20260529_092955_utc",
-  "seen_candidates": 0,
-  "shards_completed": 0,
-  "source_label_counts": {},
+  "seen_candidates": 76,
+  "shards_completed": 1,
+  "source_label_counts": {
+    "github_code_clean_python_mit_single": 50
+  },
   "source_specs": [
     {
       "config": "Python-mit",
@@ -100,7 +121,8 @@ Each row contains:
   ],
   "started_utc": "2026-05-29T09:29:57+00:00",
   "strict_gate_failures": 0,
-  "target_accepted_rows": 100000
+  "target_accepted_rows": 100000,
+  "updated_utc": "2026-05-29T09:30:08+00:00"
 }
 ```