Update how-to-build.rst

Documentation/how-to-build.rst

@@ -20,6 +20,12 @@ Dependencies
     .. code-block:: shell-session
 
        pacman -S arm-none-eabi-gcc arm-none-eabi-binutils arm-none-eabi-newlib
+    
+  - Fedora
+  
+    ..code-block:: shell-session
+        
+        dnf install arm-none-eabi-gcc arm-none-eabi-binutils arm-none-eabi-newlib
 
   - Alternative: Download `ARM's GNU toolchain`_.  **TODO**
 * **python3**:  For meson and various scripts needed for building.