Update docs

Author: ThomasFarstrike

docs/os-development/installing-on-esp32.md

@@ -16,10 +16,10 @@ But if you need to install a version that's not available there, or you built yo
 3. **Flash the firmware**
 
     ```
-    ~/.espressif/python_env/idf5.2_py3.9_env/bin/python -m esptool --chip esp32s3 0x0 firmware_file.bin
+    ~/.espressif/python_env/idf5.2_py3.9_env/bin/python -m esptool --chip esp32s3 write_flash 0x0 firmware_file.bin
     ```
 
-    Add --erase-all if you want to erase the entire flash memory, so that no old files or apps will remain.
+    Add the `--erase-all` option if you want to erase the entire flash memory, so that no old files or apps will remain.
     
     There's also a convenient `./scripts/flash_over_usb.sh` script that will attempt to flash the latest firmware that you compiled yourself.
 

docs/os-development/running-on-desktop.md

@@ -2,16 +2,20 @@
 
 1. Download a release binary (e.g., `MicroPythonOS_amd64_Linux`, `MicroPythonOS_amd64_MacOS`) or build your own [on MacOS](../os-development/macos.md) or [Linux](../os-development/linux.md).
 
-2. If you don't have a local clone yet then do it now, so you have the local_filesystem/ folder:
+2. Get the `local_filesystem/` folder
+
+    You probably already have a local clone that contains the [internal_filesystem](https://github.com/MicroPythonOS/MicroPythonOS/tree/main/internal_filesystem).
+
+    If not, then clone it now:
 
     <pre>
     ```
-    git clone https://github.com/MicroPythonOS/MicroPythonOS.git
+    git clone --recurse-submodules https://github.com/MicroPythonOS/MicroPythonOS.git
     cd MicroPythonOS/
     ```
     </pre>
 
-3. Start it:
+3. Start it from the local_filesystem/ folder:
 
     <pre>
     ```