Add 2014/vik/try.sh, update bugs.md, fix clobber

The bugs.md has more details on the bug I discovered when working on
2020/ferguson2. Even the usage in the try section (now in try.sh)
resulted in files that cannot be translated to English right.

The make clobber rule now removes *.raw instead of specific raw files.
This is important for clean up prior to updating the manifest.

Updated .gitignore.

2014/vik/README.md

@@ -23,16 +23,16 @@ For more detailed information see [2014 vik in bugs.md](/bugs.md#2014-vik).
 ## To use:
 
 ```sh
-./prog > foo.c
+echo foo | ./prog > audio_file.raw
+
+echo foo | ./prog | mplayer -demuxer rawaudio -
 ```
 
 
 ## Try:
 
 ```sh
-echo 'Want to hear me beep?' | ./prog > audio_file.raw
-
-echo 'No. I want chocolate!' | ./prog | mplayer -demuxer rawaudio -
+./try.sh
 ```