adjust for co-chair posibility

Signed-off-by: Toshaan Bharvani <toshaan@vantosh.com>

themes/openpowerfoundation/layouts/steeringcommittee/list.html

@@ -67,7 +67,9 @@
 	<div class="row">
 	{{ range where .Site.RegularPages "Section" "groups" }}
 		{{ $wgname := .Title }}
-		{{ $chairfile := printf "%s/%s" "persons" (.Param "chair") }}
+		{{ $chairs := .Param "chair" }}
+		{{ range $chairs }}
+			{{ $chairfile := printf "%s/%s" "persons" . }}
 			{{ with $.Site.GetPage $chairfile }}
 			<div class="col-lg-4" id="person">
 				<div id="person-header">
@@ -100,7 +102,7 @@
 						{{ $imagename := .Param "image" }}
 						{{ $imagelocation := (printf "%s/%s" "images/persons/" $imagename) }}
 						{{ $imageresource := resources.Get $imagelocation }}
-					{{ $image := $imageresource.Fit "200x400" }}
+						{{ $image := $imageresource.Fit "100x400" }}
 						<img src="{{  $image.RelPermalink }}" alt="{{ .Title }}">
 					{{ else }}
 						&nbsp;
@@ -111,6 +113,7 @@
 			</div>
 			{{ end }}
 		{{ end }}
+	{{ end }}
 	</div>
 </div>
 </section>