fix: start_locally.md typo (#1267)

Co-authored-by: Martin Adámek <[email protected]>

Author: VojtaM39

sources/platform/actors/development/quick_start/start_locally.md

@@ -68,7 +68,7 @@ After creating your Actor, explore the source code in your preferred code editor
 
 ### `src` Directory
 
-- `srx/main.js`: This file contains the actual code of your Actor
+- `src/main.js`: This file contains the actual code of your Actor
 
 ### `.actor` Directory