🎉🎊🍾 [New Feature] (docs) Add project README.

[Chisanan232]

Pre-Checking

‼️Please must read this section and check by yourself.
⚠️Do NOT modify this section if it doesn't have any necessary reason.

Please verify the PR header should be satisfied below format:

[commit topic] (commit scope) <commit summary>

• commit topic: The major topic of your modify. It could have multiple topics, e.g., [Breaking Change + Test].
• commit scope: The scope in project of modify. It could have multiple scopes, e.g., (config + test).
• commit summary: Summary of the commits. It should be clear that the target, the KEY POINT why you modify it or what you resolve, etc.

Please refer to GCR (Git Commit Rules) of SmoothCrawler-Cluster to get more detail about it.

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Target

• Add README to let every developers could quickly understand this project and quickly start to use it if they need.

Modify Code Scope

• Only README file (markdown format).

Effecting Scope

• NA.

Description

• Add READMD.md file to introduce project and describe its usages of each workflow templates.