Small documentation updates.

Author: dreibh

README.md

@@ -701,6 +701,7 @@ What about helping Wikipedia by adding an article in your language?
 * [_sctplib_ and _socketapi_ – The User-Space SCTP Library (_sctplib_) and Socket API Library (_socketapi_)](https://www.nntb.no/~dreibh/sctplib/)
 * [SubNetCalc – An IPv4/IPv6 Subnet Calculator](https://www.nntb.no/~dreibh/subnetcalc/)
 * [System-Tools – Tools for Basic System Management](https://www.nntb.no/~dreibh/system-tools/)
+* [Virtual Machine Image Builder and System Installation Scripts](https://www.nntb.no/~dreibh/vmimage-builder-scripts/)
 * [Wireshark](https://www.wireshark.org/)
 
 ## Simulation and Data Processing Software