Merge branch 'evaluate' of https://github.com/kumaryash18/C into evaluate

Author: kumaryash18

DIRECTORY.md

@@ -26,7 +26,6 @@
   * [Hexadecimal To Octal](https://github.com/TheAlgorithms/C/blob/master/conversions/hexadecimal_to_octal.c)
   * [Hexadecimal To Octal2](https://github.com/TheAlgorithms/C/blob/master/conversions/hexadecimal_to_octal2.c)
   * [Infix To Postfix](https://github.com/TheAlgorithms/C/blob/master/conversions/infix_to_postfix.c)
-  * [Infix To Postfix2](https://github.com/TheAlgorithms/C/blob/master/conversions/infix_to_postfix2.c)
   * [Int To String](https://github.com/TheAlgorithms/C/blob/master/conversions/int_to_string.c)
   * [Octal To Binary](https://github.com/TheAlgorithms/C/blob/master/conversions/octal_to_binary.c)
   * [Octal To Decimal](https://github.com/TheAlgorithms/C/blob/master/conversions/octal_to_decimal.c)
@@ -272,6 +271,7 @@
   * [Palindrome](https://github.com/TheAlgorithms/C/blob/master/misc/palindrome.c)
   * [Pid](https://github.com/TheAlgorithms/C/blob/master/misc/pid.c)
   * [Poly Add](https://github.com/TheAlgorithms/C/blob/master/misc/poly_add.c)
+  * [Postfix Evaluation](https://github.com/TheAlgorithms/C/blob/master/misc/postfix_evaluation.c)
   * [Prime](https://github.com/TheAlgorithms/C/blob/master/misc/prime.c)
   * [Prime Factoriziation](https://github.com/TheAlgorithms/C/blob/master/misc/prime_factoriziation.c)
   * [Prime Seive](https://github.com/TheAlgorithms/C/blob/master/misc/prime_seive.c)