VarTypes link to their github instead of gcode

They have moved, they say so on their page.

README.md

@@ -917,7 +917,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
 * [Tulip Indicators](https://tulipindicators.org) - A C library of over 100 financial technical analysis indicators. [LGPL]
 * [ub-canaries](https://github.com/regehr/ub-canaries) - A collection of C/C++ programs that try to get compilers to exploit undefined behavior.
 * [value-category-cheatsheet](https://github.com/jeaye/value-category-cheatsheet) A PDF cheatsheet for lvalues, rvalues, and the like. [Jank copyleft]
-* [VarTypes](https://code.google.com/p/vartypes/) - A feature-rich, object-oriented framework for managing variables in C++ / Qt4. [LGPL]
+* [VarTypes](https://github.com/szi/vartypes) - A feature-rich, object-oriented framework for managing variables in C++ / Qt4. [LGPL]
 * [ZBar](http://zbar.sourceforge.net/) - A barcode scanner library, which allows to scan photos/images/video streams for barcodes and return their value. [LGPL2]
 * [ZXing](https://github.com/zxing/zxing/) - An open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages. [Apache]
 * [pprint](https://github.com/p-ranav/pprint) - Pretty Printer for Modern C++. [MIT]