Summary

Adds a note to the price-pusher README clarifying that there is no :latest Docker tag, and provides a link to the ECR gallery where users can find available version tags.

Problem

Users attempting to run the price-pusher via Docker often try public.ecr.aws/pyth-network/xc-price-pusher:latest, which doesn't exist. The current docs show v<version> as a placeholder but don't explain where to find actual versions.

Solution

• Added explicit note that :latest tag doesn't exist
• Added link to ECR gallery: https://gallery.ecr.aws/pyth-network/xc-price-pusher

Changes

-# Or, run the price pusher docker image instead of building from the source
-docker run public.ecr.aws/pyth-network/xc-price-pusher:v<version> -- npm run start -- <above-arguments>
+# Or, run the price pusher docker image instead of building from the source.
+# Note: There is no :latest tag. Find available version tags at:
+# https://gallery.ecr.aws/pyth-network/xc-price-pusher
+docker run public.ecr.aws/pyth-network/xc-price-pusher:v<version> -- npm run start -- <above-arguments>