docs: rearranged expr_lang.md path

docs/src/SUMMARY.md

@@ -11,7 +11,7 @@
     -   [Configuration](config/configuration.md)
     -   [Fundamentals](config/config_fundamentals.md)
     -   [Variables](config/variables.md)
-    -   [Expression Language](expression_language.md)
+    -   [Expression Language](config/expression_language.md)
     <!-- -   [Magic Variables](magic-vars.md) -->
 
 -   [Theming & UI](theming/theming_and_ui.md)

docs/src/config/expression_language.md

@@ -70,13 +70,13 @@ Examples include:
 
 Because expressions are just Rhai, you can now write real logic inline or break it into reusable functions:
 
-```rhai
+```rust,ignore
 fn status_text(active) {
   return active ? "enabled" : "disabled";
 }
 
 label({
-  text: "Status: ${status_text(system_active)}"
+  text: `Status: ${status_text(system_active)}`
 });
 ```