Fix another typo in BREAKING.md
+ Changed and renamed `RWops.FreeRW()` to `RWops.Free()` (0ee14f91)
+ Changed and renamed `RWops.RWsize()` to `RWops.Size()` (0ee14f91)
+ Changed and renamed `RWops.RWseek()` to `RWops.Seek()` (0ee14f91)
-+ Changed and renamed `RWops.RWread()` to `RWops.Read()` and `RWops.Read2` (0ee14f91)
++ Changed and renamed `RWops.RWread()` to `RWops.Read()` and `RWops.Read2()` (0ee14f91)
+ Changed and renamed `RWops.RWtell()` to `RWops.Tell()` (0ee14f91)
+ Changed and renamed `RWops.RWwrite()` to `RWops.Write()` and `RWops.Write2()` (0ee14f91)
+ Changed and renamed `RWops.RWclose()` to `RWops.Close()` (0ee14f91)
