def not called

[AnirbanPatragithub]

Most of the python code(def) in technical.md is not called.As a result one has to copy the example from markdown examples and call the function to understand its working.
In some cases the markdown example is insufficient to understand the code.
For example :
9) Counter. We have a list with identifiers of form “id-SITE”. Calculate how many ids we have per site.

This Question is very brief and the markdown example guides on what we are trying to do but does not specify how is the input supplied into the function.

[AnirbanPatragithub]

A commented line can be added which calls the function.I will like to work on it.Though it is trivial but copying the markdown example makes it tedious.Let Me Know if I can Help.

[alexeygrigorev]

Pull requests are welcome