Document multiboot/osdev works

multiboot/README.md

@@ -1,8 +1,7 @@
 # Multiboot
 
 1.  [hello-world](hello-world/)
-1.  TODO not working
-    1.  [osdev](osdev/)
+1.  [osdev](osdev/)
 
 ## Introduction
 

multiboot/osdev/README.md

@@ -2,19 +2,6 @@
 
 Originally from: <http://wiki.osdev.org/Bare_Bones>, should be a reasonable way to start a serious OS.
 
-QEMU opens the boot menu, but if I select `main` it fails with: "no multiboot header found". Things which might be wrong:
-
-- not using cross compiler
-- generated `.bin` does not contain the multiboot section. TODO why?
-
-Related questions:
-
-- <http://stackoverflow.com/questions/14311761/simple-kernel-wont-boot-in-grub>
-- <http://stackoverflow.com/questions/17539464/grub-2-not-detecting-multiboot-header-in-kernel>
-- <http://stackoverflow.com/questions/25517545/error-no-multiboot-header-found>
-
----
-
 A hello world, with multiboot and a C interface.
 
 The multiboot interface is prepared in GAS assembly.