Replace flashcard firmware with flashcard kernel

pages/_en-US/twilightmenu/installing-flashcard.md

@@ -28,7 +28,7 @@ tabs:
     - Skip this, if you don't see your flashcard
 1. **DS Phat/Lite users:** Go to settings in the DS menu, and turn on auto-start, so your flashcard will start on boot
 
-### To run games using your flashcard firmware (optional)
+### To run games using the flashcard kernel (optional)
 
 **Please note:**
 - This only works if your flashcard is set to autoboot TWiLight Menu++. See above section for how to do so.
@@ -45,7 +45,7 @@ If your flashcart does not have a compatible loader for this section, choose the
 1. Open the `Flashcart Loader` -> `(your flashcard)` folders
     - A README.txt file is present in the `Flashcart Loader` folder, to help find which flashcart loader is appropriate for your flashcard.
 1. Drag and drop the contents of the folder to the root of the flashcard's microSD card
-1. Open TWLMenu++ Settings, switch to `Games and Apps settings` page, and set `Game Loader` to `Kernel`, so the flashcard firmware will be used instead of nds-bootstrap
+1. Open TWLMenu++ Settings, switch to `Games and Apps settings` page, and set `Game Loader` to `Kernel`, so the flashcard kernel will be used instead of nds-bootstrap
     - Alternatively you may do this as a per-game setting by pressing `Y` on a selected game and changing the `Game Loader` option there
 
 {% endcapture tab-loader %}
@@ -76,12 +76,12 @@ If your flashcart does not have a compatible loader for this section, choose the
 1. Extract it to a folder on your computer. Navigate to the folder required for your flashcart.
 1. Inside the folder, rename `TTMenu.dat` to `YSMenu.nds` if a `YSMenu.nds` file does not already exist
 1. Copy the `TTMenu` folder and `YSMenu.nds` file to the root of your MicroSD card. **Do not** copy `TTMenu.dat` directly; this will break autobooting and YSMenu's soft reset
-1. Open TWLMenu++ Settings, switch to `Games and Apps settings` page, and set `Game Loader` to `Kernel`, so the flashcard firmware will be used instead of nds-bootstrap
+1. Open TWLMenu++ Settings, switch to `Games and Apps settings` page, and set `Game Loader` to `Kernel`, so the flashcard kernel will be used instead of nds-bootstrap
     - Alternatively you may do this as a per-game setting by pressing `Y` on a selected game and changing the `Game Loader` option there
 
 {% endcapture tab-ysmenu %}
 {% assign tab-ysmenu = tab-ysmenu | split: "////////" %}
 
-### Running games with your flashcart firmware
+### Running games with the flashcard kernel
 {% assign tabs = tab-loader | concat: tab-ysmenu %}
 {% include tabs.html index=0 tabs=tabs %}