fix HTML error in authors.html

There was an "<p>" without a related "</p>".

Changed `bin/gen-authors.sh` VERSION from to "1.6 2024-04-15"
to "1.7 2024-04-16".

Run `make gen_authors` to perform the above and test under macOS.

authors.html

@@ -161,7 +161,6 @@ Jump to authors starting with: [
 <a href="#Y">Y</a>  
 <a href="#Z">Z</a>]
 </p>
-<p>
 <hr>
 <div id="A">
 <!-- A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A  A -->

bin/gen-authors.sh

@@ -83,7 +83,7 @@ shopt -s globstar	# enable ** to match all files and zero or more directories an
 
 # set variables referenced in the usage message
 #
-export VERSION="1.6 2024-04-15"
+export VERSION="1.7 2024-04-16"
 NAME=$(basename "$0")
 export NAME
 export V_FLAG=0
@@ -813,7 +813,6 @@ fi
 <a href="#Y">Y</a>&nbsp;&nbsp;
 <a href="#Z">Z</a>
 ]</p>
-<p>
 <hr>
 
 EOF