Upload static/samples/gfk_sample.json with huggingface_hub

static/samples/gfk_sample.json

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+{
+  "name": "GFK Sample",
+  "values": [85000, 78000, 92000, 88000, 95000, 102000, 115000, 108000, 98000, 92000, 87000, 101000, 95000, 91000, 105000, 99000, 108000, 118000, 125000, 115000, 105000, 98000, 94000, 112000]
+}