Add docs for OSDK debug and run

docs/src/osdk/reference/commands/debug.md

@@ -0,0 +1,30 @@
+# cargo osdk debug
+
+## Overview
+
+`cargo osdk debug` is used to debug a remote target via GDB.
+The usage is as follows:
+
+```bash
+cargo osdk debug [OPTIONS]
+```
+
+## Options
+
+`--remote <REMOTE>`:
+Specify the address of the remote target [default: .aster-gdb-socket].
+The address can be either a path for the UNIX domain socket
+or a TCP port on an IP address.
+
+## Examples
+
+- To debug a remote target via a
+[QEMU GDB stub](https://www.qemu.org/docs/master/system/gdb.html),
+    - connect to an unix socket, e.g., `./debug`;
+    ```bash
+    cargo osdk debug --remote ./debug
+    ```
+    - connect to a TCP port (`[IP]:PORT`), e.g., `localhost:1234`.
+    ```bash
+    cargo osdk debug --remote localhost:1234
+    ```