update main examples readme

Author: DannyBen

examples/README.md

@@ -15,6 +15,7 @@ Each of these examples demonstrates one aspect or feature of bashly.
 - [command-aliases](command-aliases#readme) - allowing a command to be called with multiple names
 - [command-examples](command-examples#readme) - configuring command examples
 - [dependencies](dependencies#readme) - halting script execution unless certain dependencies are installed
+- [dependencies-alt](dependencies-alt#readme) - halting script execution unless one of the required dependencies is installed
 - [environment-variables](environment-variables#readme) - halting script execution unless certain environment variables are set
 - [default-values](default-values#readme) - arguments and flags with default values
 - [minus-v](minus-v#readme) - using `-v` and `-h` in your script