Update Quickstart.md

OpenOCD is from AUR

Update Quickstart.md
931a7705 · Henrik Tjäder · f6463a75 · 931a7705
Commit 931a7705 authored 7 years ago by Henrik Tjäder
--- a/doc/Quickstart.md
+++ b/doc/Quickstart.md
@@ -39,7 +39,13 @@
 - Arch Linux

 ``` console
-$ sudo pacman -Sy arm-none-eabi-{binutils,gdb} openocd
+$ sudo pacman -Sy arm-none-eabi-{binutils,gdb}
+```
+
+OpenOCD is in AUR:
+
+```
+$ yaourt -S openocd
 ```

 For hardware-association and pre-packaged UDEV-rules also install: