Update installation instructions.

Author: leonjza

README.md

@@ -36,7 +36,25 @@ Executing commands via MQ services:
 
 ## installation
 
-`punch-q` can be installed via `pip` with `pip install punch-q`.
+This utility relies on [pymqi](https://github.com/dsuch/pymqi) and needs to be successfully installed for `punch-q` to work. The installation of `pymqi` relies on the IBM MQ client utilities to be installed which you would need to download from IBM's website first. [This](https://github.com/dsuch/pymqi/issues/15#issuecomment-124772995) Github issue can be used as a reference to install the correct MQ Client libraries.
+
+In summary, to get the IBM MQ client for `pymqi` and `punch-q` working, you need to:
+
+- Download the IBM MQ Client libraries from IBM's [website](http://www-01.ibm.com/software/integration/wmq/clients/). The version 7.5 x64 Linux client library was used while testing `punch-q` and can be found [here](https://www-945.ibm.com/support/fixcentral/swg/downloadFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+MQ&release=7.5.0.8&platform=All&function=fixId&fixids=7.5.0.8-WS-MQC-LinuxX64&useReleaseAsTarget=true&includeRequisites=0&includeSupersedes=0&downloadMethod=http) (You may need to login with an IBM ID first).
+- After the download is complete, extract the archives contents and accept the IBM license agreement with `/mqlicense.sh -accept`.
+- Install the `MQSeriesRuntime`, `MQSeriesClient` and `MQSeriesSDK` RPM's. These can be installed on Kali Linux after installing `rpm` with `rpm -ivh <PackageName>.rpm`.
+
+Finally, with the MQ series client installed, `punch-q` itself can be installed with:
+
+```bash
+pip install punch-q
+```
+
+*Note:* When running `punch-q`, and you get an error similar to `ImportError: libmqic_r.so: cannot open shared object file: No such file or directory`, simply set the `LB_LIBRARY_PATH` to /opt/mqm/lib64 library with:
+
+```bash
+export LD_LIBRARY_PATH=/opt/mqm/lib64
+```
 
 ## license