Made HOWTO a tiny bit better.

Documentation/HOWTO-change-firmware-and-compile-it_MeesElectronics.md

@@ -17,11 +17,13 @@ Install Reticulum:
 
     $ pip install rns --break-system-packages
 
-Add rns software to path:
+Add new directories to path:
 
     $ nano ~/.bashrc
 
-Add `export PATH=~/.local/bin:$PATH` to the end of the file. Exit with `CTRL-x` and type `y` to save the changes.
+Add `export PATH=~/.local/bin:~/bin:$PATH` to the end of the file. Exit with `CTRL-x` and type `y` to save the changes.
+
+Now reload the shell so the changes to the path will take effect: `exec $SHELL`. You can also logout and login again.
 
 Download arduino-cli:
 
@@ -32,10 +34,6 @@ Add arduino-cli to path by editing ~/.bashrc
 
     $ nano ~/.bashrc
 
-Add `export PATH=~/bin:$PATH` to end of file. Exit with `CTRL-x` and type `y` to save the changes.
-
-Now reload the shell so the changes to the path will take effect: `exec $SHELL`. You can also logout and login again.
-
 ## Clone git repo
 
     $ git clone https://github.com/liberatedsystems/RNode_Firmware_CE.git