fix: link within angle brackets was corrupted by table rowspan (#47)

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 after the ^^ rowspan symbol.

Author: jeffreytse

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

@@ -211,8 +211,8 @@ def handle_rowspan(data)
 
       # handle rowspan
       span_cell = scope.table.span_row_cells[scope.row.col_index]
-      if span_cell and cell.content.match(/^\s*\^{2}/)
-        cell.content = cell.content.gsub(/^\s*\^{2}/, '')
+      if span_cell and cell.inner_html.match(/^\s*\^{2}/)
+        cell.inner_html = cell.inner_html.gsub(/^\s*\^{2}/, '')
         span_cell.inner_html += "\n<br>\n#{cell.inner_html}"
         rowspan = span_cell.get_attribute('rowspan') || 1
         rowspan = rowspan.to_i + 1