func Extensions() parser.Extensions {
	extensions := parser.NoIntraEmphasis         
	extensions |= parser.Tables                  
	extensions |= parser.FencedCode              
	extensions |= parser.Autolink                
	extensions |= parser.Strikethrough           
	extensions |= parser.SpaceHeadings           
	extensions |= parser.HeadingIDs              
	extensions |= parser.BackslashLineBreak      
	extensions |= parser.DefinitionLists         
	extensions |= parser.LaxHTMLBlocks           
	extensions |= parser.NoEmptyLineBeforeBlock  
	return extensions
}
Extensions returns the bitmask of extensions supported by this renderer.
The output of this function can be used to instantiate a new markdown
parser using the `NewWithExtensions` function.
package markdown
import (
	md "github.com/gomarkdown/markdown"
	"github.com/gomarkdown/markdown/parser"
)