Editing Template:Circa/doc/sortable

If the parameter "<code>sortable=yes</code>" is specified, the template generates invisible text that will cause the output to work in [[Help:Sorting|sortable]] [[Help:Tables|tables]], at the cost of adding those words (read-out, audibly) by many screen readers.  The benefit is effective, clickable arrows as in "Col&nbsp;2" below:

{| class="sortable wikitable"
|-
! Title!!Col 1!!Col 2
|-
| Foo|| style="text-align:right;" |1066|| style="text-align:right;" |1066
|-
| Bar|| style="text-align:right;" |{{ {{ROOTPAGENAME}}}} 1510|| style="text-align:right;" |{{ {{ROOTPAGENAME}}|1510|sortable=yes}}
|-
| Baz|| style="text-align:right;" |1956|| style="text-align:right;" |1956
|-
| Jaz|| style="text-align:right;" |{{ {{ROOTPAGENAME}}}} 410|| style="text-align:right;" |{{ {{ROOTPAGENAME}}|410|sortable=yes}}
|}