improved readme

Author: elasticdotventures

README.md

@@ -55,6 +55,9 @@ cargo run --bin cratedocs test --tool lookup_item --crate-name tokio --item-path
 # Look up documentation for a specific version
 cargo run --bin cratedocs test --tool lookup_item --crate-name serde --item-path Serialize --version 1.0.147
 
+# Look up a trait in a crate (e.g., the Serialize trait in serde) & a specific version
+cargo run --bin cratedocs test --tool lookup_item --crate-name serde --item-path serde::Serialize --version 1.0.160
+
 # Search for crates
 cargo run --bin cratedocs test --tool search_crates --query logger --limit 5
 
@@ -64,8 +67,9 @@ cargo run --bin cratedocs test --tool lookup_crate --crate-name tokio --format t
 
 # Save output to a file
 cargo run --bin cratedocs test --tool lookup_crate --crate-name tokio --output tokio-docs.md
-# Summarize output by stripping LICENSE and VERSION sections
-cargo run --bin cratedocs test --tool lookup_crate --crate-name tokio --tldr
+
+# Summarize output by stripping LICENSE and VERSION sections, limits to xxxxx tokens (uses huggingface tokenizer)
+cargo run --bin cratedocs test --tool lookup_crate --crate-name tokio --tldr --max_tokens 48000
 ```
 
 By default, the HTTP server will listen on `http://127.0.0.1:8080/sse`.