Update PROTOCOL-WEB.md
Using http/2 literal header format for status.
diff --git a/doc/PROTOCOL-WEB.md b/doc/PROTOCOL-WEB.md
index 7d9b9f0..562d599 100644
--- a/doc/PROTOCOL-WEB.md
+++ b/doc/PROTOCOL-WEB.md
@@ -60,8 +60,7 @@
Message framing (vs. [http2-transport-mapping](http://www.grpc.io/docs/guides/wire.html#http2-transport-mapping))
1. Response status encoded as part of the response body
- * Key-value pairs formatted as HTTP/1.1 headers block (without the empty
- newline \r\n to terminate the block)
+ * Key-value pairs encoded in the HTTP/2 [literal header format](https://tools.ietf.org/html/rfc7541#section-6.2) as a single header block.
2. 8th (MSB) bit of the 1st gRPC frame byte
* 0: data
* 1: trailers