Add "target" and "rel" parameters to figure shortcode

Also:

- Remove unnecessary space from `figure` tag if no class is specified.
  - Update related tests.
- Add test cases for the changes made to the figure shortcode.
- Document the newly added target and rel parameters
- Add more detail to the documentation of all figure shortcode parameters.

1 files changed, 1 insertions, 1 deletions

diff --git a/hugolib/page_test.go b/hugolib/page_test.go
index 5c8c46c9b..3e9e985e2 100644
--- a/hugolib/page_test.go
+++ b/hugolib/page_test.go
@@ -789,7 +789,7 @@ func TestPageWithShortCodeInSummary(t *testing.T) {
 	assertFunc := func(t *testing.T, ext string, pages Pages) {
 		p := pages[0]
 		checkPageTitle(t, p, "Simple")
-		checkPageContent(t, p, normalizeExpected(ext, "<p>Summary Next Line. \n<figure >\n    \n        <img src=\"/not/real\" />\n    \n    \n</figure>\n.\nMore text here.</p>\n\n<p>Some more text</p>\n"))
+		checkPageContent(t, p, normalizeExpected(ext, "<p>Summary Next Line. \n<figure>\n    \n        <img src=\"/not/real\" />\n    \n    \n</figure>\n.\nMore text here.</p>\n\n<p>Some more text</p>\n"))
 		checkPageSummary(t, p, "Summary Next Line.  . More text here. Some more text")
 		checkPageType(t, p, "page")
 	}