Repository: awslabs/aws-lambda-rust-runtime (language: rust)

Issue:
Curl example in the read me doc does not work without a `/` at the end
Hi,
While running cargo lambda locally with the cli, when the run time is online using the following code 

```
curl -X POST http://localhost:9001/lambda-url/test-lambda-http -H "Content-Type: text/html" -d '{"username": "abc", "age": "100"}'
```
Does not work but by adding a `/` after the test-lambda-http it works. As follows:

```
curl -X POST http://localhost:9001/lambda-url/test-lambda-http/ -H "Content-Type: text/html" -d '{"username": "abc", "age": "100"}'
```

I spent quite a lot of time to find the issue because it does not produce any log that what is the problem. It will better to have the readme file updated of the project with the suggested changes if that is an expected scenario.

Also still getting the following error on the 0.8.0 version in my mac
```
ERROR internal error watching your project error=IoError { about: "waiting on process group", err: Os { code: 10, kind: Uncategorized, message: "No child processes" } }
    Finished dev [unoptimized + debuginfo] target(s) in 0.21s
     Running `target/debug/test-lambda-http`
    Finished dev [unoptimized + debuginfo] target(s) in 0.18s
     Running `target/debug/test-lambda-http`
^C INFO terminating lambda scheduler
 INFO terminating lambda function function="test-lambda-http"
ERROR internal error watching your project error=IoError { about: "waiting on process group", err: Os { code: 10, kind: Uncategorized, message: "No child processes" } }
```


Discussion / hints:
Feel free to open a PR

Fix patch:
diff --git a/README.md b/README.md
index 157c1c98..12dbf523 100644
--- a/README.md
+++ b/README.md
@@ -358,7 +358,7 @@ An simpler alternative is to cURL the following endpoint based on the address an
 
 ```bash
 curl -v -X POST \
-  'http://127.0.0.1:9001/lambda-url/<lambda-function-name>' \
+  'http://127.0.0.1:9001/lambda-url/<lambda-function-name>/' \
   -H 'content-type: application/json' \
   -d '{ "command": "hi" }'
 ```


Test patch: