fix internal links in entry index.html from 1984 thru 2012

2011/akari/README.md

@@ -76,7 +76,7 @@ properly.
 * ASCII art (with end of lines in LF bytes only, not CR-LF)
 
 This is useful for decoding some curiously interlaced images, such as
-the included [example.ppm](example.ppm).
+the included [example.ppm](%%REPO_URL%%/2011/akari/example.ppm).
 
 Anything that is not parsable as `PGM` or `PPM` will be downsampled as
 ASCII art.  Since the source code is formatted as ASCII art, it's only
@@ -124,7 +124,7 @@ executables.  The output executables each print a message to `stdout`.
 It takes quite a bit of skill and obfuscation to interleave a
 C program 4 levels deep, it's much easier to interleave something like
 a `brainf#$%` program in a C program, for example.  For comparison, a
-`brainf#$%` program is embedded inside [akari.c](akari.c).
+`brainf#$%` program is embedded inside [akari.c](%%REPO_URL%%/2011/akari/akari.c).
 
 
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