adding in arm cross-compile example

Author: eyberg

c/README.md renamed to c/02-opencl/README.md

@@ -0,0 +1,9 @@
+This is a simple hello world example to cross-compile for arm on x86.
+
+```
+aarch64-linux-gnu-gcc main.c -static -o arm
+```
+
+```
+ops run arm --arch=arm64
+```

c/config.json renamed to c/02-opencl/config.json

@@ -0,0 +1,5 @@
+#include <stdio.h>
+
+int main() {
+  printf("test\n");
+}

c/main.c renamed to c/02-opencl/main.c

@@ -1,6 +1,6 @@
 {
 	"BaseVolumeSz": "150m",
-	"Dirs": ["app", "bootstrap", "config", "database", "lang", "public", "resources", "routes", "storage", "tests", "vendor"],
+	"Dirs": ["app", "bootstrap", "config", "database", "public", "resources", "routes", "storage", "tests", "vendor"],
 	"Files": [".env", "artisan", "composer.json", "composer.lock", "package.json", "phpunit.xml", "vite.config.js"],
 	"Args": ["-S", "0.0.0.0:8000", "public/index.php"]
 }