doc: fix link; make cells in table align at top

"Query Parameters Examples" table aligned the labels in column 1 in
the middle of the text in column 2. Change that to align cells
at the top of the row.

Also fix a bad link.

Author: rouilj

doc/rest.txt

@@ -705,6 +705,7 @@ operation on ``https://.../rest/data/issue``.
 .. list-table:: Query Parameters Examples
   :header-rows: 1
   :widths: 20 80
+  :class: valign-top
 
   * - Query parameter
     - Explanation
@@ -717,7 +718,7 @@ operation on ``https://.../rest/data/issue``.
   * - ``@verbose=2``
     - each item in the collection includes the "label" property in
       addition to "id" property and a link for the item.
-      This is useful as documented below in "Searches and selection"_.
+      This is useful as documented below in `Searches and selection`_.
   * - ``@verbose=3``
     - will display the content property of messages and files. Note
       warnings about this below. Using this for collections is

website/www/_static/style.css

@@ -565,3 +565,4 @@ div#contact table td {
   padding: 1pt 1em;
 }
 
+table.valign-top tbody td { vertical-align: top; }