いろんなフォントで「loop_knot」変換
Zen Old Mincholoop_knot
Yusei Magicloop_knot
M PLUS 1loop_knot
Shippori Antiqueloop_knot
Yuji Mailoop_knot
Dela Gothic Oneloop_knot
DotGothic16loop_knot
Train Oneloop_knot
Hira Mincholoop_knot
Potta Oneloop_knot
Reggae Oneloop_knot
Stickloop_knot
Zen Kurenaidoloop_knot
Kosugi Maruloop_knot
Rampart Oneloop_knot
Hachi Maru Poploop_knot
New Tegominloop_knot
RocknRoll Oneloop_knot
Kaisei Decolloop_knot
「loop_knot」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
