Updated Protocol description

Author: niraj06

README.md

@@ -0,0 +1,12 @@
+# proto-buf-python
+
+Protocol buffers (Protobuf) are a language-agnostic data serialization format developed by Google.
+
+   **Low data volume:** Protobuf makes use of a binary format, which is more compact than other formats such as JSON.
+   
+   **Persistence:** Protobuf serialization is backward-compatible. This means that you can always restore previous data, even if the interfaces have changed in the meantime.
+   
+   **Design by contract:** Protobuf requires the specification of messages using explicit identifiers and types.
+   
+   **Requirement for gRPC:** gRPC (gRPC Remote Procedure Call) is an efficient remote procedure call system that makes use of the Protobuf format.
+