Fix manifest for 2015/howe

The manifest entry_text for avgtime.sh is much better now and the
description by the author (which was missing) is now much better too (I
asked the author first if he wanted to provide something but he
suggested that 'you apply your wit "in a timely manner"'.

2015/howe/.entry.json

@@ -47,7 +47,7 @@
 	    "OK_to_edit" : true,
 	    "display_as" : "shellscript",
 	    "display_via_github" : true,
-	    "entry_text" : "support script"
+	    "entry_text" : "report average time running a command N times"
 	},
 	{
 	    "file_path" : "makeholes.c",

2015/howe/README.md

@@ -134,6 +134,7 @@ a region of edits are highly unlikely.
     Basic test program verifies known test edit distances and `patch(1)` support.
 
 * [avgtime.sh](%%REPO_URL%%/2015/howe/avgtime.sh)
+    Run `time(1)` on a command `N` times to determine its average runtime.
 
 * [makeholes.c](%%REPO_URL%%/2015/howe/makeholes.c)
     Random edits (holes) made to a file in-place.

2015/howe/index.html

@@ -475,7 +475,8 @@ a region of edits are highly unlikely.</p>
 <ul>
 <li><p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/prog-test.sh">prog-test.sh</a>
 Basic test program verifies known test edit distances and <code>patch(1)</code> support.</p></li>
-<li><p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/avgtime.sh">avgtime.sh</a></p></li>
+<li><p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/avgtime.sh">avgtime.sh</a>
+Run <code>time(1)</code> on a command <code>N</code> times to determine its average runtime.</p></li>
 <li><p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/makeholes.c">makeholes.c</a>
 Random edits (holes) made to a file in-place.</p></li>
 </ul>
@@ -530,7 +531,7 @@ Comm. of ACM, Vol. 18, June 1975, pages 341-343<br>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/prog.alt.c">prog.alt.c</a> - alternate source code</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/prog.orig.c">prog.orig.c</a> - original source code</li>
-<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/avgtime.sh">avgtime.sh</a> - support script</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/avgtime.sh">avgtime.sh</a> - report average time running a command N times</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/makeholes.c">makeholes.c</a> - C code to add random holes to a file</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/prog.alt-test.sh">prog.alt-test.sh</a> - script to run test suite with alternate code</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/howe/prog-test.sh">prog-test.sh</a> - script to run test suite</li>