ce76a7bd0cd856b6cc1aa35360849af7fe224c45
angie
  Tue Dec 1 10:14:32 2020 -0800
Another link & wording tweak suggested by David.  Also update Nextstrain drag-and-drop link to new location.

diff --git src/hg/hgPhyloPlace/phyloPlace.c src/hg/hgPhyloPlace/phyloPlace.c
index c73fbec..4f16792 100644
--- src/hg/hgPhyloPlace/phyloPlace.c
+++ src/hg/hgPhyloPlace/phyloPlace.c
@@ -1371,30 +1371,34 @@
         slSort(&results->subtreeInfoList, subTreeInfoUserSampleCmp);
         // Make Nextstrain/auspice JSON file for each subtree.
         char *bigGenePredFile = phyloPlaceDbSettingPath(db, "bigGenePredFile");
         char *metadataFile = phyloPlaceDbSettingPath(db, "metadataFile");
         struct tempName *jsonTns[subtreeCount];
         struct subtreeInfo *ti;
         int ix;
         for (ix = 0, ti = results->subtreeInfoList;  ti != NULL;  ti = ti->next, ix++)
             {
             AllocVar(jsonTns[ix]);
             trashDirFile(jsonTns[ix], "ct", "subtreeAuspice", ".json");
             treeToAuspiceJson(ti, db, refGenome, bigGenePredFile, metadataFile, jsonTns[ix]->forCgi);
             }
         puts("<p></p>");
         makeButtonRow(jsonTns, subtreeCount, isFasta);
+        printf("<p>If you have metadata you wish to display, click a 'view subtree in Nextstrain' "
+               "button, and then you can drag on a CSV file to "
+               "<a href='"NEXTSTRAIN_DRAG_DROP_DOC"' target=_blank>add it to the tree view</a>."
+               "</p>\n");
         summarizeSequences(seqInfoList, isFasta, results, jsonTns, db, bigTree);
         reportTiming(&startTime, "write summary table (including reading in lineages)");
         for (ix = 0, ti = results->subtreeInfoList;  ti != NULL;  ti = ti->next, ix++)
             {
             int subtreeUserSampleCount = slCount(ti->subtreeUserSampleIds);
             printf("<h3>Subtree %d: ", ix+1);
             if (subtreeUserSampleCount > 1)
                 printf("%d related samples", subtreeUserSampleCount);
             else if (subtreeCount > 1)
                 printf("Unrelated sample");
             printf("</h3>\n");
             makeNextstrainButton("viewNextstrainSub", ix, jsonTns);
             puts("<br>");
             // Make a sub-subtree with only user samples for display:
             struct phyloTree *subtree = phyloOpenTree(ti->subtreeTn->forCgi);