Merge branch 'master' into davidbarsky/update-readme

# Conflicts resolved in favour of davidbarsky/update-readme:
#	Cargo.lock
#	lambda/Cargo.toml
#	lambda/examples/README.md
#	lambda/examples/basic.rs
#	lambda/examples/error-handling.rs
#	lambda/src/client.rs
#	lambda/src/lib.rs

Author: rimutaka

README.md

@@ -190,7 +190,11 @@ pub trait Handler<E, O> {
 
 `Handler` provides a default implementation that enables you to provide a Rust closure or function pointer to the `lambda!()` macro.
 
-Optionally, you can pass your own instance of Tokio runtime to the `lambda!()` macro. See our [`with_custom_runtime.rs` example](https://github.com/awslabs/aws-lambda-rust-runtime/tree/master/lambda-runtime/examples/with_custom_runtime.rs)
+Optionally, you can pass your own instance of Tokio runtime to the `lambda!()` macro: 
+```
+let rt = tokio::runtime::Runtime::new()?;
+lambda!(my_handler, rt);
+```
 
 ## AWS event objects
 

lambda/examples/macro.rs

@@ -3,6 +3,10 @@ use serde_json::Value;
 
 type Error = Box<dyn std::error::Error + Send + Sync + 'static>;
 
+// #[lambda] attribute removes the need for boilerplate code
+// required by `lambda::run(func).await?` as demonstrated in other
+// examples.
+
 #[lambda]
 #[tokio::main]
 async fn main(event: Value, _: Context) -> Result<Value, Error> {