docs: flesh out example READMEs for managed weights (#2997)
* docs: flesh out example READMEs for managed weights
The existing READMEs listed commands without explaining what managed
weights are, what the cog.yaml fields mean, or common gotchas like
.dockerignore. An MLE picking these up as a starting point would have
to reverse-engineer everything from the YAML comments.
- resnet: added conceptual overview, field-by-field cog.yaml docs,
file layout, .dockerignore explanation, adaptation guide
- managed-weights: clarified this is a test fixture (not a model
template), linked to resnet as the real starting point, restructured
for scannability
- managed-weights/cog.yaml: replaced hardcoded personal registry URL
with placeholder, removed image arg from push commands
* fix: correct weight storage description -- files live in cache, not project dir
HF-sourced weights go to ~/.cache/cog/weights/, not a weights/ dir in
the project. cog predict assembles ephemeral hardlink trees under
.cog/mounts/ from the cache. Updated both READMEs to describe the
actual flow.
