docs: align changelog entry with PR title

Author: abetlen

CHANGELOG.md

@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 - feat: Update llama.cpp to ggml-org/llama.cpp@c0c7e147e
-- docs: Add contributing guide and link it from README.md by @abetlen in #2229
+- docs: add contributing guide by @abetlen in #2229
 - chore: Migrate llama.cpp submodule URL to ggml-org/llama.cpp by @shalinib-ibm in #2034
 - fix: Enable unified KV cache for embedding contexts to preserve full per-sequence context in batch embedding calls by @SanjanaB123 in #2217