Add missing 1994/shapiro/shapiro.alt.c

With a tip from Leo the missing alt code has been added to the website.

Ta, Leo (🦁⭐️🌌)!

bugs.md

@@ -1702,14 +1702,6 @@ Since it works there is no need to fix this except for a challenge to yourself.
 
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-### STATUS: missing file - please provide it
-
-The index.html file refers to an alternate version of the code that is not
-obfuscated but it is missing from the entry directory and the archive. Do you
-have this file?
-
-Jump to: [top](#)
-
 <div id="1994_tvr">
 ## 1994/tvr
 </div>