Support Texindy program

[DidenkoAndre]

Texindy is makeindex thing, which can sort cyrillic letters. So it will be nice if your compiler works fine with this.

Link for my repo (again):
http://latex.aslushnikov.com/compile?git=https://github.com/DidenkoAndre/GOS_book&target=_main.tex

However, if I compile locally with MikTex I will get the following Index. Your compiler just omits it.

[aslushnikov]

Could you please give me an example how you use xindy to compile your book?

[DidenkoAndre]

Actually you can look at this Makefile:
https://github.com/DidenkoAndre/GOS_book/blob/master/Makefile

But two main lines for you:

	pdflatex -synctex=1 -interaction=nonstopmode -shell-escape $(MAINSRC);\
	xindy -L russian -C utf8 _main.idx;\