Upload folder using huggingface_hub (part 4)

upgrade-samples/README.md

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+# upgrade-samples/ — evaluation only
+
+These are **Standard-tier** looping exercise animations — transparent-background
+WebP, the same clips shown on https://repdb.co. They are included so you can
+judge the paid-tier asset quality before buying — **evaluation only**, not for
+production use or redistribution (see the upgrade-samples clause in LICENSE-DATA.md:
+the free tier's usage terms do not extend to this folder). The Standard tier
+adds looping animations like these for most exercises. Full tiers and pricing:
+https://repdb.co/pricing