Update cpp client README.md with mention of libjsoncpp
@@ -27,7 +27,7 @@ Pulsar C++ Client Library has been tested on:
```shell
apt-get install cmake libssl-dev libcurl4-openssl-dev liblog4cxx-dev \
- libprotobuf-dev libboost-all-dev libgtest-dev
+ libprotobuf-dev libboost-all-dev libgtest-dev libjsoncpp-dev
```
#### Compile and install Google Test:
