add Jump to top links to other entry HTML files

Add short line and Jump to top links to other entry HTML files.

Ran `make gen_other_html` to perform the above.

2012/deckmyn/deckmyn.md

@@ -100,6 +100,11 @@ Notice how only the first staff (or any staff) needs to have the full length.
 Some files with well-known melodies are included as examples.
 
 
+<hr style="width:10%;text-align:left;margin-left:0">
+
+Jump to: [top](#)
+
+
 <!--
 
     Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.

2012/hou/hint.md

@@ -132,6 +132,11 @@ As an extra tweak, the text message actually does something useful. Remove the
 [2] [Regular Expression Matching Can Be Simple And Fast (but is slow in Java, Perl, PHP, Python, Ruby, ...)](http://swtch.com/~rsc/regexp/regexp1.html)
 
 
+<hr style="width:10%;text-align:left;margin-left:0">
+
+Jump to: [top](#)
+
+
 <!--
 
     Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.

2012/tromp/how.md

@@ -65,6 +65,11 @@ Here's what each of the 6 auxiliary functions do:
 ```
 
 
+<hr style="width:10%;text-align:left;margin-left:0">
+
+Jump to: [top](#)
+
+
 <!--
 
     Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.