doc: rephrase dev section

Author: jakobrosenberg

GET_STARTED.md

@@ -2,10 +2,10 @@
 
 1. First [download and install Visual Studio Code](https://code.visualstudio.com/).
 2. Install the [Pymakr VSCode Extension](https://marketplace.visualstudio.com/items?itemName=pycom.Pymakr)
-    
-    _(We're installing the preview, but once the project reaches "stable" we'll, be using the regular extension.)_
 
-    <img src="./media/readme/install-pymakr.gif" />
+   _(We're installing the preview, but once the project reaches "stable" we'll, be using the regular extension.)_
+
+   <img src="./media/readme/install-pymakr.gif" />
 
 3. That's it! You've installed the Pymakr Extension for VSCode
 
@@ -35,27 +35,30 @@ Once the project is ready to run, it needs to be uploaded to a device.
 
 To speed up development, you can put a project in `development mode`.
 
-In development mode, Pymakr automatically propagates file changes in and restarts the main script.
+In development mode, Pymakr automatically propagates local file changes to connected devices and then restarts the main script.
 
 Dev mode can be configured in `pymakr.json`
+
 ```json
 {
-    "onUpdate": "restartScript" | "softRestartDevice" | "hardRestartDevice"
+  "onUpdate": "restartScript" | "softRestartDevice" | "hardRestartDevice"
 }
 ```
 
 **onUpdate:** Action to be called once file changes have been propagated.
+
 - **restartScript** Clears the `main.py` module as well as any changed modules. Then imports `boot.py` and `main.py`.
 - **softRestartDevice** Performs <kbd>ctrl + d</kbd>
 - **hardRestartDevice** Performs `machine.reset()`
 
 #### NOTE
-*`machine.sleep` and `machine.deepsleep` do not work in development since they stop the USB connection.*
+
+_`machine.sleep` and `machine.deepsleep` do not work in development since they stop the USB connection._
 
 ---
 
 ## Hint: Organizing your setup
 
 Having to switch between different tabs can be cumbersome. To solve this, you can drag your devices and projects to the file explorer view.
 
-![](./media/readme/move-view.gif)
+![](./media/readme/move-view.gif)