Update build_instructions.md

Author: SamuelHenriqueDeMoraisVitrio

docs/build_instructions.md

@@ -18,7 +18,7 @@ darwin install
 make a local build to test with the following command it will create the **CWebStudioFirmware** file, you can set the compiler here [build/config.lua](/build/config.lua) 
 ```bash
 darwin run_blueprint build/ --mode folder local_build 
-\```
+```
 ```
 
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