chore(docs): add instructions for cross-compilation

README.md

@@ -14,20 +14,37 @@
 ## Installation
 
 1. Install [rclone](https://rclone.org/install/)
-2. Put `rrclone` onto `$PATH`
+1. Put `rrclone` onto `$PATH`
 
 ## Usage
 
 1. Configure rclone
-2. Prepare configuration file for `rrclone`.
-3. Run `rrclone` in dry-run mode:
-  ```sh
-  rrclone ./config.yaml --dry-run
-  ```
-4. Run rrclone:
-  ```sh
-  rrclone ./config.yaml
-  ```
+1. Prepare configuration file for `rrclone`.
+1. Run `rrclone` in dry-run mode:
+
+    ```sh
+    rrclone ./config.yaml --dry-run
+    ```
+
+1. Run rrclone:
+
+    ```sh
+    rrclone ./config.yaml
+    ```
+
+## Cross Compilation
+
+Install [cross](https://github.com/cross-rs/cross):
+
+```sh
+cargo install -f cross
+```
+
+Cross compile, for example for Linux on aarch64:
+
+```sh
+cross build --target aarch64-unknown-linux-gnu --release
+```
 
 ## License