actions: remove release pipeline

crates/brk_cli/Cargo.toml

@@ -31,6 +31,3 @@ vecdb = { workspace = true }
 [[bin]]
 name = "brk"
 path = "src/main.rs"
-
-[package.metadata.dist]
-dist = true

crates/brk_cli/README.md

@@ -30,6 +30,10 @@ Portable build (without native CPU optimizations):
 cargo install --locked brk_cli
 ```
 
+## Update
+
+Updating is the same as installing: re-run the install command above. `cargo install` overwrites the existing binary in place. Indexed data is reused when the on-disk format is unchanged, otherwise it is reset and re-synced automatically on the next run.
+
 ## Run
 
 ```bash