update readme example using make , add new example and add dependabot config

[restuwahyu13]

if using the shell there are too many problems, but much easier and without problems using make

[agreatfool]

Thanks for the pr. Will check. May need a bit long to read the codes etc, since not familiar with make.

[restuwahyu13]

oke no problem

[agreatfool]

@restuwahyu13 Thank you for the pr. I read through the commits, and found it's a big heavy, seems you provided an example with a lot of 3rd libs implementation.

Could you please reduce the make related updates to only on current example dir codes. That could let readers focus on the functionality they want from current tool.

Thanks.