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Add middleman-gh-pages
Correct malformed formats.

Translate some sentences.
Remove source/CNAME
Make links relative.
Correct malformed format.
Update with original documents.

Difference between fcfe4833317730edfbc9993ff6e5d958dea4c1 and 887533880ef0d3e65e392b52b4b5084d7990b7ef
Update with original documents.

Difference between 887533880ef0d3e65e392b52b4b5084d7990b7ef and 125e2060d68e6adc35fbb84b4f9410948e1829a9 of master branch.
Update according to original documents.

Difference between
  125e2060d68e6adc35fbb84b4f9410948e1829a9 and
  975e17acc44101631b24248b7f1b973d62adae7a
Update with original documents.

Difference between 975e17acc44101631b24248b7f1b973d62adae7a and afabab739f44f8f81f522e347025528007eb8fd1
Update with original documents.

For difference between:
    afabab739f44f8f81f522e347025528007eb8fd1 (1/15)
    8cefaad45970445cb114399a0e8bc21a074deed5 (1/23)