feat: add community link in readme.

[Peefy]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

feat: add community link in readme.

2. What is the scope of this PR (e.g. component or file name):

• README-zh.md
• README.md

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

6. Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[zong-zhe]

LGTM

[He1pa]

lgtm

[coveralls]

Pull Request Test Coverage Report for Build 3231978903

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 141 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-0.6%) to 59.195%

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Files with Coverage Reduction	New Missed Lines	%
kclvm/runner/src/assembler.rs	1	97.86%
kclvm/sema/src/resolver/node.rs	9	75.23%
kclvm/sema/src/ty/mod.rs	35	66.02%
kclvm/sema/src/resolver/config.rs	42	79.61%
kclvm/parser/src/lib.rs	54	83.44%

Totals
Change from base Build 3226038526:	-0.6%
Covered Lines:	20961
Relevant Lines:	35410

---

💛 - Coveralls