readme

Readme.md

+### Dependencies ###
+* Google Tests (```tests/CMakeList.txt``` assumes ```/usr/src/gtest```)
+* libbenchmark (https://github.com/google/benchmark)
+* libmalloc_count (https://github.com/bingmann/malloc_count)
+
+(set correct paths in ```benchmarks/CMakeList.txt```)
+
+* x86-64 CPU with ```avx``` and ```avx2``` extension
+(test with ```grep avx2 /proc/cpuinfo```)
+
+### Building ###
+```
+mkdir build
+cd build
+cmake ..
+make
+```
+All tests and benchmarks should be inside a new ```bin/``` folder.