fix(docs): update default value for POWERTOOLS_DEV env var

Author: shdq

Diff for: docs/index.md

@@ -293,7 +293,7 @@ Core utilities such as Tracing, Logging, and Metrics will be available across al
 | **POWERTOOLS_TRACER_CAPTURE_HTTPS_REQUESTS** | Captures HTTP(s) requests as segments.                                                 | [Tracer](./core/tracer)   | `true`                |
 | **POWERTOOLS_LOGGER_LOG_EVENT**              | Logs incoming event                                                                    | [Logger](./core/logger)   | `false`               |
 | **POWERTOOLS_LOGGER_SAMPLE_RATE**            | Debug log sampling                                                                     | [Logger](./core/logger)   | `0`                   |
-| **POWERTOOLS_DEV**            | Increase JSON indentation to ease debugging when running functions locally or in a non-production environment                                                                     | [Logger](./core/logger)   | `0`                   |
+| **POWERTOOLS_DEV**            | Increase JSON indentation to ease debugging when running functions locally or in a non-production environment                                                                     | [Logger](./core/logger)   | `false`                   |
 | **LOG_LEVEL**                                | Sets logging level                                                                     | [Logger](./core/logger)   | `INFO`                |
 
 ## Tenets