http/body: fix 'recieved' -> 'received' in doc comment

Doc comment in src/http/body.rs line 176 read 'recieved in the incoming request'. Fixed to 'received'. Comment-only change.

Signed-off-by: SAY-5 <SAY-5@users.noreply.github.com>

Author: SAY-5

src/http/body.rs

@@ -173,7 +173,7 @@ impl Body {
 
     /// Get a value for the length of this `Body`'s content, in bytes, if
     /// known. This value can come from either the Content-Length header
-    /// recieved in the incoming request or response assocated with the body,
+    /// received in the incoming request or response assocated with the body,
     /// or be provided by an exact `http_body::Body::size_hint` if the `Body`
     /// is constructed from an `http_body::Body` impl.
     pub fn content_length(&self) -> Option<u64> {