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.

1996/westley/README.md

@@ -60,8 +60,8 @@ This 1-line program allows various analog ASCII clocks to print out the time;
 the ASCII clock is built from the command line arguments, so many different
 types of clocks can be generated.  Three different scripts are supplied to print
 out a grandfather clock, a mantle clock that runs backwards, and a linear-style
-clock.  (they are [clock1.sh](clock1.sh), [clock2.sh](clock2.sh), and
-[clock3.sh](clock3.sh))
+clock.  (they are [clock1.sh](%%REPO_URL%%/1996/westley/clock1.sh), [clock2.sh](%%REPO_URL%%/1996/westley/clock2.sh), and
+[clock3.sh](%%REPO_URL%%/1996/westley/clock3.sh))
 
 The program makes the following (possibly non-portable) assumptions: