Add Alireza Kheradmand to contributors.

Author: alir3zakh

CONTRIBUTORS.md

@@ -9,4 +9,5 @@ Below is a list of all contributors to the project, in the chronological order o
 - Jonas Lauermann <<[email protected]>>
 - Felix Brinkmann <<[email protected]>>
 - Til Roth <<[email protected]>>
+- Alireza Kheradmand <<[email protected]>>
 - Sven Hartz

src/shell.cpp

@@ -408,6 +408,7 @@ Immanuel Haffner\
 , Jonas Lauermann\
 , Felix Brinkmann\
 , Til Roth\
+, Alireza Kheradmand\
 ";
         std::cout << std::endl;
         std::exit(EXIT_SUCCESS);