Fix memory leak and specify library language (#3)

* Fix: Add call to `gate_delete` for `g4` in `example.c` to prevent a memory leak

* Docs: Specify that this is a C lib

Author: Iteron-dev

README.md

@@ -2,7 +2,7 @@
 
 ## Overview
 
-A fast and space-efficient library for handling combinational Boolean circuits composed of the following types of gates:
+A fast and space-efficient C library for handling combinational Boolean circuits composed of the following types of gates:
 - NAND, AND, OR, NOR, XOR, XNOR
 
 

example.c

@@ -36,6 +36,7 @@ static int example(void) {
     gate_delete(g0);
     gate_delete(g1);
     gate_delete(g2);
+    gate_delete(g4);
 
     return 0;
 }