fix many internal links

Fixed a number of internal links that need to
go to the GitHub site.

Ran `make www` to perform the above.

2006/toledo2/README.md

@@ -102,8 +102,8 @@ and a disk controller, just like at the start of the personal computers
 revolution (circa 1975).
 
 It needs an initial memory image to do something usable, so along with it you
-will find two files: ([C.BASIC](C.BASIC) and [C.BIOS](C.BIOS)). Rename
-[C.BASIC](C.BASIC) to `C` (NOTE from the judges: running `make` will do this for
+will find two files: ([C.BASIC](%%REPO_URL%%/2006/toledo2/C.BASIC) and [C.BIOS](%%REPO_URL%%/2006/toledo2/C.BIOS)). Rename
+[C.BASIC](%%REPO_URL%%/2006/toledo2/C.BASIC) to `C` (NOTE from the judges: running `make` will do this for
 you), run the emulator, and et voila! you have the public domain Palo Alto [Tiny
 BASIC](https://en.wikipedia.org/wiki/Tiny_BASIC) (by Li-Chen Wang), published in
 the very first volume of [Dr. Dobb's