Use img.html directly if no caption

exampleSite/content/blog/gallery-shortcode/index.md

@@ -195,6 +195,15 @@ Result:
 
 ## Customization
 
+{{< paige/gallery caption="X image" >}}
+    {{< paige/gallery image="*-1*.jpg" height="10rem" />}}
+    {{< paige/gallery image="*-1*.jpg" height="10rem" />}}
+    {{< paige/gallery image="*-1*.jpg" height="10rem" />}}
+    {{< paige/gallery image="*-1*.jpg" height="10rem" />}}
+{{< /paige/gallery >}}
+
+---
+
 Code:
 
 ```go-text-template

layouts/shortcodes/paige/gallery.html

@@ -24,6 +24,7 @@
         {{ $link = $resource.RelPermalink }}
     {{ end }}
 
+    {{ if $caption }}
         {{ partial "paige/image-figure.html" (dict
             "caption" $caption
             "compact" true
@@ -40,6 +41,22 @@
             "table" true
             "width" $width
         ) }}
+    {{ else }}
+        {{ partial "paige/a.html" (dict
+            "content" (partial "paige/img.html" (dict
+                "class" "img-fluid"
+                "height" $height
+                "maxheight" $maxheight
+                "maxwidth" $maxwidth
+                "method" $method
+                "options" $options
+                "resource" $resource
+                "src" $image
+                "width" $width
+            ))
+            "href" $link
+        ) }}
+    {{ end }}
 {{ else }}
     {{ $inner := chomp .Inner }}