New contribution

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• Cautions！which will become double contribution if [updating] button of a browser is pushed immediately after contribution.

• [a new-line -- effective] which turns up in the position into which the new-line was put, and disregards and records half-size spaces, such as the head of the sentence.
• [a new-line -- invalid]which disregards half-size spaces and new-line positions, such as the head of the sentence, and records them.
• [Chart mode] It records as entered.