Add output documentation for clean and raw output options

docs/outputs/output.md

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+# Output
+
+Depending on the value of the variable `clean` set within the options object, the output of the module differs. 
+
+## Clean Output
+
+If `clean = true` then please refer to the [clean](https://github.com/YasogaN/google-maps-review-scraper/blob/main/docs/outputs/clean.md) output section
+
+
+## Raw Output
+
+If `clean = false` or the clean option is not set, then please refer to the [raw](https://github.com/YasogaN/google-maps-review-scraper/blob/main/docs/outputs/raw.md) output section