added latex source for handout and slides

.gitmodules

@@ -10,3 +10,6 @@
 [submodule "usb-attacks-book"]
 	path = usb-attacks-book
 	url = https://github.com/magnusKue/usb-attacks-book.git
+[submodule "usb_attacks_handout_and_slides"]
+	path = usb_attacks_handout_and_slides
+	url = https://git.magnusku.de/Magnus/usb_attacks_handout_and_slides

README.md

@@ -9,7 +9,13 @@ This is an overview about our university project exploring USB-based attack vect
 | `./rubber_ducky` | keystroke injection device built on the RP2040 ONE | David Schwarzkopf |
 | `./p4wnp1_gb_autoplay` | HID & MSC combo attack demo using P4wnP1 aloa | Magnus Küderli |
 | `./Keylogger` | passive in-line keystroke capture | David Schwarzkopf |
-| `./usb-attacks-book` | Full project writeup as mdBook | * |
+
+
+## Supplementary Material
+| path | description |
+| --- | --- |
+| `./usb-attacks-book` | Full project writeup as mdBook |
+| `./usb_attacks_handout_and_slides` | LaTeX source for our handout and slides |
 
 
 ## Documentation