cross compile instructions (#11)

.cargo/config.toml

@@ -0,0 +1,2 @@
+[build]
+target = "x86_64-pc-windows-gnu"

readme.md

@@ -18,10 +18,25 @@ cargo generate -g  /~https://github.com/catornot/rrplug.git
 
 a git [template](/~https://github.com/catornot/rrplug-template) also exists but it may or not be maintained as well 
 
+## cross compiling plugins
+
+To compile a plugin from a host machine that's not using windows, you need to install the required target.
+
+```bash
+rustup target add x86_64-pc-windows-gnu
+```
+
+Then create a cargo config to always compile your project for windows.
+
+```bash
+mkdir .cargo
+echo "[build]\ntarget = \"x86_64-pc-windows-gnu\"" > .cargo/config.toml
+```
+
 ## versioning
 rrplug had a major rewrite for each plugins version so versions that a `x` plugins version are `x.\*.\*`
 | rrplug  | plugins |
 | :-----: | :-----: |
 | `3.*.*` |  `v3`   |
 | `2.*.*` |  `v2`   |
-| `0.1.*` |  `v1`   |
+| `0.1.*` |  `v1`   |