This function shows three frequently used markdown and related built function.
m()
Text.
m()#> This is the helper for R users to use markdown. #> ────────────────── Type m1('url') URL ───────────────── #> Input m1("url","name") #> Output [name](url) #> e.g. m1("https://github.com/JiaxiangBU/add2md/","add2md") #> [add2md](https://github.com/JiaxiangBU/add2md/) #> ─────────────── Type m2('url','name') Image ─────────────── #> Input m2("url","name") #> Output  #> e.g. m2("https://raw.githubusercontent.com/JiaxiangBU/picbackup/master/add2blog_sample_wallpaper.png","The blog wallpaper") #>  #> ───────────────── Type m3('name') bold ───────────────── #> Input m3("name") #> Output **name** #> e.g. m3("Jiaxiang Li") #> **Jiaxiang Li**