fix(CTemplate): spelling

C_Tempate/src/main.c

@@ -1,25 +0,0 @@
-/**
- * Copyright [2023] Jiří Štefka <jiriks74>
- * Project: AdventOfCode
- * @file main.c
- * @brief Main entry point
- * @author jiriks74
- */
-
-#include <stdio.h>
-
-/**
- * @brief Main entry point
- * @param argc Number of command-line arguments.
- * @param argv Array of command-line arguments.
- */
-#ifndef TESTING
-int main(int argc, char *argv[])
-#endif
-#ifdef TESTING
-    int main_test(int argc, char *argv[])
-#endif
-{
-  printf("Hello world!\n");
-  return 0;
-}