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.

2011/blakely/index.html

@@ -428,7 +428,7 @@ line option.</p>
 program. In the reverse direction, the code can either be killed, or
 will stop if it is unable to find a grid that will evolve to the
 current layout correctly. This can be seen with the sample grid
-<a href="t0_3.dat">t0_3.dat</a>, which evolves backwards by only two time-steps.</p>
+<a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/blakely/t0_3.dat">t0_3.dat</a>, which evolves backwards by only two time-steps.</p>
 <h3 id="input-file-format">Input file format</h3>
 <p>The input files must encode a square grid, where a space is a dead cell, and any
 other character (except a newline) is a living cell. Each line must be the same