misc: remove brevz from doc description

Author: Miaxos

src/lib.rs

@@ -120,7 +120,7 @@ impl ApolloTracing {
     /// will receive every traces and send them to the Apollo Studio Ingress for processing
     ///
     /// autorization_token - Token to send metrics to apollo studio.
-    /// hostname - Hostname like brevz-graphql-1.io
+    /// hostname - Hostname like yourdomain-graphql-1.io
     /// graph_ref - <ref>@<variant> Graph reference with variant
     /// release_name - Your release version or release name from Git for example
     /// batch_target - The number of traces to batch, it depends on your traffic