Add shorter examples

examples/c-form/ex2.bpf.c

@@ -0,0 +1,10 @@
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("kprobe/sys_clone")
+int hello(struct pt_regs *ctx) {
+    bpf_printk("Hello, World!");
+    return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";

examples/execve2.py

@@ -0,0 +1,14 @@
+from pythonbpf.decorators import section
+# from pythonbpf.decorators import tracepoint, syscalls
+from ctypes import c_void_p, c_int32
+
+# @tracepoint(syscalls.sys_enter_execve)
+
+
+@section("kprobe/sys_clone")
+def hello(ctx: c_void_p) -> c_int32:
+    print("Hello, World!")
+    return c_int32(0)
+
+
+LICENSE = "GPL"