687a9c88647a46f71d40f2d04b77251b5a9cff55
max
  Fri May 31 08:06:39 2024 -0700
section docs, refs #17950

diff --git src/hg/htdocs/goldenPath/help/bigPsl.html src/hg/htdocs/goldenPath/help/bigPsl.html
index 9a470f4..3761f45 100755
--- src/hg/htdocs/goldenPath/help/bigPsl.html
+++ src/hg/htdocs/goldenPath/help/bigPsl.html
@@ -60,31 +60,31 @@
     uint    chromSize;		"Size of target chromosome"
   
     uint match;        		"Number of bases matched."
     uint misMatch; 		"Number of bases that don't match "
     uint repMatch; 		"Number of bases that match but are part of repeats "
     uint nCount;   		"Number of 'N' bases "
     uint seqType;   		"0=empty, 1=nucleotide, 2=amino_acid"
     ) </code></pre>
 <p>
 The value of the <code>oStrand</code> field indicates whether or not the stored psl data should be
 reverse-complemented before it is outputted or displayed. This is necessary because the bigPsl file 
 stores reference coordinates on the positive strand, as required by the BED format. The 
 <code>strand</code> field indicates whether the positions in <code>oChromStarts</code> are listed 
 from the chromosome beginning (+) or end (-).</p>
 
-<p>Since bigPsl is just a bigBed file, in addition to these fields, bigPsl
+<p><b>Addtional extra fields:</b> Since bigPsl is just a bigBed file, in addition to these fields, bigPsl
 files can have any number of additional, extra bigBed fields, as
 long as they are defined after the seqType field. 
 See <a href="bigBed.html#Ex3">Example 3</a> of the bigBed documentation page for 
 sample .as and .bed files. These fields can also be used for custom <a
 href="https://genome-blog.gi.ucsc.edu/blog/2022/06/28/track-hub-settings/">mouseOvers</a>,
 feature filters and coloring options. Contact us if you run into difficulty
 using them.</p>
 
 <p>
 The <code>bedToBigBed</code> utility uses a substantial amount of memory: approximately 
 25% more RAM than the uncompressed BED input file. The -maxAllow option to bedToBigBed can be
 used to allow the tool to use more than 16GB of RAM.</p>
 
 <h2>Creating a bigPsl track</h2>
 <p>