add two avx instructions example & simple clear screen

clr.c

@@ -0,0 +1,21 @@
+// make a simple "CLS"
+
+#include <stdio.h>
+#include <unistd.h>
+
+void printstrings(const char *add){
+    for(int i = 0; i < 40; ++i)
+        printf("String %d - %s\n", i, add);
+}
+
+const char *x[] = {"first", "second", "third"};
+
+int main(){
+    for(int i = 0; i < 3; ++i){
+        printf("\033c");
+        printstrings(x[i]);
+        sleep(1);
+    }
+    printf("\033c");
+    return 0;
+}