So, the Jekyll blog postings are always in markdown format and also
       include some front matter. The file names are always in the format
       `YYYY-MM-DD_some_text.md`.
       
       Front matter always contains at least the `date` and `title` elemen
       So given all this information, what I need to do to set up the most
       basic form, is:
       
        * On the top-level directory, create a new directory with the name
          being the file name of the source with the `.md` suffix stripped
        * In the new directory, the actual posting, as a file named
          `gophermap`, just to kep it simple.
        * The first line shall be simpli `!${title}`, from front matter
        * Optionally followed by `Publishing date: ${date}` and even perha
          link to the original HTTP URL.
       
       Content must be transformed from markdown to plaintext by using the
       following rules.
       
        * Header elements `#+` must be transformed so that they won't be
          treated as comments.
        * Inline URLs will be replaced by the anchor name, followed by a
          reference number in the format `[${n}]`, with `n` an incrementin
          integer.
       
       Example original markdown:
         # Header 1
         ## Heder 2
         ### Heder 3
       
       After transformation:
         Header 1
         ========
         Header 2
         --------
         Header 3
         [simply just one extra LF]
       
       Example inline URLs:
         There is [a pretty good example](http://example.com) available.
       
       After transformation:
         There is a pretty good example [1] available.
       
         URLs:
         1.
         ha pretty good example<TAB>URL:http://example.com
       
       And now... it became to warm to continue.
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