fix: link within angle brackets was corrupted by table colspan (#48)

Added two urls within angle brackets to make them as links. It works
fine at a normal single cell. While it cannot be turned successfully
for a url before the `||` colspan symbol.

Author: jeffreytse

lib/jekyll-spaceship/processors/table-processor.rb

@@ -151,10 +151,10 @@ def handle_colspan(data)
         end
       end
 
-      result = cell.content.match(/(\|)+$/)
+      result = cell.inner_html.match(/(\|)+$/)
       return if result.nil?
 
-      cell.content = cell.content.gsub(/(\|)+$/, '')
+      cell.inner_html = cell.inner_html.gsub(/(\|)+$/, '')
       result = result[0]
       colspan = result.scan(/\|/).count
       scope.row.colspan += colspan