Update hermes.md to explain debugging on Hermes (#2360)

* Update hermes.md to explain debugging on Hermes 

This has been a frequently source of confusion. See facebook/hermes#48 (comment) for an example.

* fix link format, update base docs

* add missing tweak to base docs

Co-authored-by: Bartosz Kaszubowski <[email protected]>

Author: Huxpro

docs/hermes.md

@@ -70,9 +70,11 @@ $ npx react-native run-android --variant release
 
 This will compile JavaScript to bytecode during build time which will improve your app's startup speed on device.
 
-## Debugging Hermes using Google Chrome's DevTools
+## Debugging JS on Hermes using Google Chrome's DevTools
 
-Hermes supports the Chrome debugger by implementing the Chrome inspector protocol. This means Chrome's tools can be used to directly debug JavaScript running on Hermes, on an emulator or device.
+Hermes supports the Chrome debugger by implementing the Chrome inspector protocol. This means Chrome's tools can be used to directly debug JavaScript running on Hermes, on an emulator or on a real, physical, device.
+
+> Note that this is very different with the "Remote JS Debugging" from the In-App Developer Menu documented in the [Debugging](debugging#debugging-using-a-custom-javascript-debugger) section, which actually runs the JS code on Chrome's V8 on your development machine (laptop or desktop).
 
 Chrome connects to Hermes running on device via Metro, so you'll need to know where Metro is listening. Typically this will be on `localhost:8081`, but this is [configurable](https://facebook.github.io/metro/docs/configuration). When running `yarn start` the address is written to stdout on startup.
 

website/versioned_docs/version-0.63/hermes.md

@@ -70,9 +70,11 @@ $ npx react-native run-android --variant release
 
 This will compile JavaScript to bytecode during build time which will improve your app's startup speed on device.
 
-## Debugging Hermes using Google Chrome's DevTools
+## Debugging JS on Hermes using Google Chrome's DevTools
 
-Hermes supports the Chrome debugger by implementing the Chrome inspector protocol. This means Chrome's tools can be used to directly debug JavaScript running on Hermes, on an emulator or device.
+Hermes supports the Chrome debugger by implementing the Chrome inspector protocol. This means Chrome's tools can be used to directly debug JavaScript running on Hermes, on an emulator or on a real, physical, device.
+
+> Note that this is very different with the "Remote JS Debugging" from the In-App Developer Menu documented in the [Debugging](debugging#debugging-using-a-custom-javascript-debugger) section, which actually runs the JS code on Chrome's V8 on your development machine (laptop or desktop).
 
 Chrome connects to Hermes running on device via Metro, so you'll need to know where Metro is listening. Typically this will be on `localhost:8081`, but this is [configurable](https://facebook.github.io/metro/docs/configuration). When running `yarn start` the address is written to stdout on startup.