Add backend docs

README.md

@@ -8,9 +8,9 @@ It is meant to "just work", without adding unnecessary and bloated language feat
 
 ## State of this projects
 
-Basic algorithms like the fibonacci sequence should compile fine. More sophisticated programs will not work yet. See [TODO](./TODO) for a roadmap.
+Basic algorithms should compile fine. See the [examples](./examples) More sophisticated programs will not work yet. See [TODO](./TODO) for a roadmap.
 
-The Sabre compiler emits JavaScript, until the language has matured sufficiently. Backends for WASM, C, x86 and ARM are planned.
+The Sabre compiler emits JavaScript, and a C backend is currently in development. Backends for WASM, x86 and ARM are planned.
 
 ## Examples
 

docs/SUMMARY.md

@@ -6,3 +6,5 @@
 - [Common language concepts](./concepts/SUMMARY.md)
   - [Variables](./concepts/variables.md)
   - [Data Types](./concepts/datatypes.md)
+- [Developer Resources](./developers/SUMMARY.md)
+  - [Backends](./developers/backends.md)

docs/developers/backends.md

@@ -0,0 +1,18 @@
+# Backends
+
+Sabre currently implements a JavaScript backend, but a C backend is in development. WASM, ARM and x86 are planned.
+The backend can be specified in the `Cargo.toml` file in the root of the project:
+
+```toml
+[features]
+...
+
+default = ["backend_c"]
+```
+
+## Available Backends
+
+| Target Language | Identifier     | Stability notice      |
+| :-------------- | :------------- | :-------------------- |
+| Node.js         | `backend_node` | mostly stable         |
+| C               | `backend_c`    | in active development |