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docs(Hashing/Hash_Collision): add go part. (#395)

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* docs(Hashing/Hash_Collision): add go part.

* docs(Hashing/Hash_Collision): add go part.

* docs(Hashing/Hash_Collision): add go part.

* docs(Hashing/Hash_Collision): add go part.

* docs(Hashing/Hash_Collision): add go part.

* Update hash_collision.md

* fix context logic question

* Update Go language hash table collision handling to limit each bucket to 8 entries and compare keys' high 8 bits of hash to reduce access to key-value pairs

* Update hash_collision.md

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Co-authored-by: Yudong Jin <krahets@163.com>
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docs/chapter_hashing/hash_collision.md
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@ -75,3 +75,5 @@
Java 采用「链式地址」。在 JDK 1.8 之后，HashMap 内数组长度大于 64 时，长度大于 8 的链表会被转化为「红黑树」，以提升查找性能。
Python 采用「开放寻址」。字典 dict 使用伪随机数进行探测。
Golang 采用「链式地址」。Go 规定每个桶最多存储 8 个键值对，超出容量则连接一个溢出桶；当溢出桶过多时，会执行一次特殊的等量扩容操作，以保证性能。