add syllable doc

docs/src/chinese_syllable.md

+# chinese syllable
+
+## Syllable
+* [List of Syllables in Pinyin](https://resources.allsetlearning.com/chinese/pronunciation/syllable)
+The word syllable is a term referring to the units of a word, composed on an (optional) initial, a final, and a tone.
+The word "syllable" is 音节 (yīnjié) in Chinese. Most spoken syllables in Mandarin Chinese correspond to one written Chinese character.
+There are a total of 410 common pinyin syllables.
+
+* [Rare syllable](https://resources.allsetlearning.com/chinese/pronunciation/Rare_syllable)
+
+* [Chinese Pronunciation: The Complete Guide for Beginner](https://www.digmandarin.com/chinese-pronunciation-guide.html)
+
+* [Mandarin Chinese Phonetics](http://www.zein.se/patrick/chinen8p.html)
+
+* [chinese phonetics](https://www.easymandarin.cn/online-chinese-lessons/chinese-phonetics/)
+Chinese Characters, called “Hanzi”, are the writing symbols of the Chinese language.
+Pinyin is the Romanization of a phonetic notation for Chinese Characters.
+Each syllable is composed of three parts: initials, finals, and tones.
+In the Pinyin system there are 23 initials, 24 finals, 4 tones and a neutral tone.
+
+## Pinyin
+* [Pinyin](https://en.wikipedia.org/wiki/Pinyin)
+* [Pinyin quick start guide](https://resources.allsetlearning.com/chinese/pronunciation/Pinyin_quick_start_guide)
+* [Pinyin Table](https://en.wikipedia.org/wiki/Pinyin_table)
+* [Piyin Chat](https://resources.allsetlearning.com/chinese/pronunciation/Pinyin_chart)
+* [Mandarin Chinese Pinyin Table](https://www.archchinese.com/chinese_pinyin.html)
+* [Chinese Pinyin Table ](http://www.quickmandarin.com/chinesepinyintable/)
+
+## Tones
+* [Four tones](https://resources.allsetlearning.com/chinese/pronunciation/Four_tones)
+* [Neutral tone](https://resources.allsetlearning.com/chinese/pronunciation/Neutral_tone)
+
+## Zhuyin
+* [Bopomofo](https://en.wikipedia.org/wiki/Bopomofo)
+* [Zhuyin table](https://en.wikipedia.org/wiki/Zhuyin_table)