added a bit of doc and some games

src/install.h

@@ -1,6 +1,15 @@
 #ifndef __INSTALL_H__
 #define __INSTALL_H__
+#include <stdlib.h>
 #define INSTALLED_FLAG_FILE "__DO_NOT_REMOVE__"
+
+/**
+ * @brief Add a mod to the folder defined in main.h
+ *
+ * @param filePath path to the mod file
+ * @param appId game for which the mod is destined to be used with.
+ * @return EXIT_SUCCESS or EXIT_FAILURE
+ */
 int addMod(char * filePath, int appId);
 
 #endif