typo: probobuf -> protobuf
@ -183,7 +183,7 @@ We can send RPCs to a server and get responses using `grpc_cli call` command.
- Send non-proto rpc
For using gRPC with protocols other than probobuf, you will need the exact
For using gRPC with protocols other than protobuf, you will need the exact
method name string and a file containing the raw bytes to be sent on the
wire.