947a8b9ea2a461b1a92629306de66e995d557c32
dschmelt
  Tue Apr 23 11:21:26 2019 -0700
Finishing cut off sentence, adding code tags in Ex4 #23354

diff --git src/hg/htdocs/goldenPath/help/bigGenePred.html src/hg/htdocs/goldenPath/help/bigGenePred.html
index ec10044..3397494 100755
--- src/hg/htdocs/goldenPath/help/bigGenePred.html
+++ src/hg/htdocs/goldenPath/help/bigGenePred.html
@@ -96,46 +96,49 @@
 <pre><code><strong>bedToBigBed</strong> -as=bigGenePred.as -type=bed12+8 bigGenePred.txt chrom.sizes myBigGenePred.bb</code></pre>
 <p>
 <strong>Step 5.</strong> 
 Move the newly created bigGenePred file (<em>myBigGenePred.bb</em>) to a web-accessible http, https,
 or ftp location. See <a href="hgTrackHubHelp.html#Hosting">hosting section</a> if necessary.</p>
 <p>
 <strong>Step 6.</strong> 
 Construct a <a href="hgTracksHelp.html#CustomTracks">custom track</a> using a single 
 <a href="hgTracksHelp.html#TRACK">track line</a>. Any of the track attributes will be
 available for use on bigBed tracks. The basic version of the track line will look something 
 like this:</p>
 <pre><code>track type=bigGenePred name="My Big GenePred" description="A Gene Set Built from Data from My Lab" bigDataUrl=http://myorg.edu/mylab/myBigGenePred.bb</code></pre>
 <p>
 <strong>Step 7.</strong> 
 Paste this custom track line into the text box on the <a href="../../cgi-bin/hgCustom">custom 
-track management page</a>. Click <button>Go</button> and you should be taken to a </p>
+track page</a> with your modified URL. Click <button>Submit</button> and your track should 
+load successfully. Then click <button>Go</button> to be taken to the browser window
+with your custom track at the top. Note that there might not be data at all positions.
+</p>
 
 <h2>Examples</h2>
 <a name="Example1"></a>
 <h3>Example &num;1: Create a Custom Track</h3>
 <p>
 Create a bigGenePred custom track using the bigGenePred file located 
 on the UCSC Genome Browser http server, <em>bigGenePred.bb</em>. This file contains data for
 the hg38 assembly.</p>
 <ol>
   <li>
   Construct a track line that references the hosted file:</p>
   <pre><code>track type=bigGenePred name=&quot;bigGenePred Example One&quot; description=&quot;A bigGenePred file&quot; bigDataUrl=http://genome.ucsc.edu/goldenPath/help/examples/bigGenePred.bb</code></pre>
   <li>
-  Paste the track line into the <a href="../../cgi-bin/hgCustom?db=hg38">custom track management 
-  page</a> for the human assembly hg38.</li> 
+  Paste the track line into the <a href="../../cgi-bin/hgCustom?db=hg38">custom track
+  page</a> for the human assembly, hg38.</li> 
   <li>
   Click the <button>Submit</button> button.</li> 
 </ol>
 <p>
 Custom tracks can also be loaded via one URL line. The link below loads the same bigGenePred track 
 and sets additional parameters in the URL:</p>
 <a href="http://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&hgct_customText=track%20type=bigGenePred%20bigDataUrl=http://genome.ucsc.edu/goldenPath/help/examples/bigGenePred.bb"
 target="_blank"><pre><code>http://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&amp;hgct_customText=track%20type=bigGenePred%20bigDataUrl=http://genome.ucsc.edu/goldenPath/help/examples/bigGenePred.bb</code></pre></a>
 <p>
 After this example bigGenePred track is loaded in the Genome Browser, click on the track to 
 change display from dense to pack, then click on a gene in the browser's track display to view 
 the gene details page. Note that the page offers links to translated protein, predicted mRNA,
 and genomic sequence.</p>
 
 <a name="Example2"></a>
@@ -152,31 +155,31 @@
   <button>Submit</button>. 
   <li>
   Zoom to a region with track data, such as 
   <code>chr9:133,255,650-133,255,700</code>, and note that the track now displays amino acids. 
   <li>
   Return to the track controls page and click the box next to &quot;Show codon numbering&quot;, 
   then click <button>Submit</button>. The browser tracks display will now show amino acid
   letters and numbering.</li>
 </ol>
 <p>
 Alternatively, you can also add a parameter in the custom track line, <code>baseColorDefault=genomicCodons</code>, 
 to set amino acids to display by default:</p>
 <pre><code>browser position chr10:67,884,600-67,884,900
 track type=bigGenePred baseColorDefault=genomicCodons name="bigGenePred Example Two" description="A bigGenePred file" visibility=pack bigDataUrl=http://genome.ucsc.edu/goldenPath/help/examples/bigGenePred.bb </code></pre>
 <p>
-Paste the above into the hg38 <a href="../../cgi-bin/hgCustom?db=hg38">custom track management 
+Paste the above into the hg38 <a href="../../cgi-bin/hgCustom?db=hg38">custom track 
 page</a> to view an example of bigGenePred amino acid display at the beginning of the SIRT1 gene on 
 chromosome 10.</p>
 <p class='text-center'>
   <img class='text-center' src="../../images/codonColoring.png" alt="An image of a track with codons colored" width="999"> 
 </p>
 <a name="Example3"></a>
 <h3>Example &num;3: Bed12+8 to BigGenePred</h3>
 <p>
 In this example, you will create your own bigGenePred file from an existing pre-bigGenePred input
 file, a bed12+8 file.</p>
 <ol>
   <li> 
   Save the example bed12+8 input file to your computer,
   <em><a href="examples/bigGenePred.txt">bigGenePred.txt</a></em>.</li>
   <li> 
@@ -192,42 +195,43 @@
   Run the <code>bedToBigBed</code> utility to create the bigGenePred output file (<em>step 4</em>, 
   above):
   <pre><code><B>bedToBigBed</B> -type=bed12+8 -tab -as=bigGenePred.as bigGenePred.txt hg38.chrom.sizes bigGenePred.bb</code></pre></li>
   <li> 
   Place the newly created bigGenePred file (<em>bigGenePred.bb</em>) on a web-accessible server 
   (<em>Step 5</em>, above).</li>
   <li> 
   Construct a track line that points to the bigGenePred file (<em>Step 6</em>, above).</li>
   <li> 
   Create the custom track on the human assembly hg38 (Dec. 2013), and view it in the Genome Browser 
   (<em>step 7</em>, above).</li>
 </ol>
 <a name="Example4"></a>
 <h3>Example &num;4: GTF (or GFF) to BigGenePred </h3>
 <p>In this example, you will convert a GTF file to bigGenePred using command line utilities.
-You will need <em>gtfToGenePred</em>, <em>genePredTobigGenePred</em>,
-and <em>bedToBigBed</em>. If you would like to convert a GFF file to bigGenePred, you will use
-<em>gff3ToGenePred</em> in place of the <em>gtfToGenePred</em>. You can download utilities from the
+You will need <code>gtfToGenePred</code>, <code>genePredTobigGenePred</code>,
+and <code>bedToBigBed</code>. If you would like to convert a GFF file to bigGenePred, you will use
+<code>gff3ToGenePred</code> in place of the <code>gtfToGenePred</code>. You can download utilities from the
 <a href="http://hgdownload.soe.ucsc.edu/admin/exe/">utilities directory</a>.</p>
 <ol>
   <li>
-  Obtain a GTF file using the wget command. Skip this step if you already have a GTF or GFF file.
+  Obtain a GTF file using the <code>wget</code> command. Skip this step if you already have a GTF
+  or GFF file.
   <pre><code>wget http://genome.ucsc.edu/goldenPath/help/examples/bigGenePredExample4.gtf</code></pre></li>
   <li>
-  Convert the GTF file to genePred extended format using the gtfToGenePred command.
+  Convert the GTF file to genePred extended format using the <code>gtfToGenePred</code> command.
   <pre><code>gtfToGenePred -genePredExt bigGenePredExample4.gtf example4.genePred</code></pre>
-  If you are converting a GFF file, use the gff3ToGenePred command.
+  If you are converting a GFF file, use the <code>gff3ToGenePred</code> command.
   <pre><code>gff3ToGenePred yourFile.gff example4.genePred </pre></code></li>
   <li>
   Convert the genePred extended file to a pre-bigGenePred text file.
   <pre><code>genePredToBigGenePred example4.genePred bigGenePredEx4.txt</code></pre></li>
   <li>
   Obtain helper files for the conversion to binary bigGenePred. If you are not using hg38, 
   you can find the chrom.sizes file for your organism in the
   <a href="http://hgdownload.soe.ucsc.edu">downloads directory</a> under "Full data set".
   <pre><code>wget http://hgdownload.soe.ucsc.edu/goldenPath/hg38/bigZips/hg38.chrom.sizes
 wget http://genome.ucsc.edu/goldenPath/help/examples/bigGenePred.as</code></pre></li>
   <li>
   Convert your text bigGenePred to a binary indexed format.
   <pre><code>bedToBigBed -type=bed12+8 -tab -as=bigGenePred.as bigGenePredEx4.txt hg38.chrom.sizes bigGenePredEx4.bb</code></pre></li>
   <li> 
   Put your binary indexed file in a web-accessible location. See the