release 2.0 version with a default api example

* workaround for count on non countable things for older php versions
* tune up readme, to the last commit that enhanced first API release example
* closes https://codeberg.org/codeigniter/miniapi/issues/1
* closes https://codeberg.org/codeigniter/miniapi/issues/2

example with one parameters in url and three arguments

* provide default project of geany