Readme function names

Author: dimadeveatii

README.md

@@ -40,5 +40,4 @@ foo.map((elem, idx) => elem*2).sort().take(2).toArray(); // [2,4]
 ### Implement performance tests: CPU and memory (if possible)
 
 ## To be discussed
-### Review name of `toMapAll` iterator;
-### Review name of `getIterator` and `fromGenerator` utils;
+* Review names of `toMapAll`, `groupBy`, `getIterator`, `fromGenerator`;