update project count on release page

Author: NoopDog

spa/src/app/files/releases/release.component.html

@@ -3,7 +3,7 @@
     <div content>
         <status-panel class="release">
             <div class="highlights">
-                <h2 class="fontsize-xl">Annotated cell clusters, differential expression analyses, and data visualization for 24 datasets stratified from 13 HCA DCP human single cell projects</h2>
+                <h2 class="fontsize-xl">Annotated cell clusters, differential expression analyses, and data visualization for 23 datasets stratified from 12 HCA DCP human single cell projects</h2>
                 <h3 class="fontsize-l">Global Gene Search</h3>
                 <p class="fontsize-s">Search for cell gene expression across all March 2020 release datasets. <a class="fontsize-s" href="https://singlecell.broadinstitute.org/single_cell?scpbr=human-cell-atlas-march-2020-release" target="_blank" rel="noopener noreferrer">Search in Single Cell Portal</a>.</p>
                 <h3 class="fontsize-l">Data</h3>