いろんなフォントで「second_reading」変換
Zen Old Minchosecond_reading
Yusei Magicsecond_reading
M PLUS 1second_reading
Shippori Antiquesecond_reading
Yuji Maisecond_reading
Dela Gothic Onesecond_reading
DotGothic16second_reading
Train Onesecond_reading
Hira Minchosecond_reading
Potta Onesecond_reading
Reggae Onesecond_reading
Sticksecond_reading
Zen Kurenaidosecond_reading
Kosugi Marusecond_reading
Rampart Onesecond_reading
Hachi Maru Popsecond_reading
New Tegominsecond_reading
RocknRoll Onesecond_reading
Kaisei Decolsecond_reading
「second_reading」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
