[skip ci]Format markdown doc for CODE_OF_CONDUCT.md (milvus-io#10042)

Signed-off-by: ruiyi.jiang <[email protected]>

CODE_OF_CONDUCT.md

@@ -6,19 +6,19 @@ In the interest of fostering an open and welcoming environment, we as contributo
 
 Examples of behavior that contributes to creating a positive environment include:
 
--   Using welcoming and inclusive language.
--   Being respectful of differing viewpoints and experiences.
--   Gracefully accepting constructive criticism.
--   Focusing on what is best for the community.
--   Showing empathy towards other community members.
+- Using welcoming and inclusive language.
+- Being respectful of differing viewpoints and experiences.
+- Gracefully accepting constructive criticism.
+- Focusing on what is best for the community.
+- Showing empathy towards other community members.
 
 Examples of unacceptable behavior by participants include:
 
--   The use of sexualized language or imagery and unwelcome sexual attention or advances.
--   Trolling, insulting/derogatory comments, and personal or political attacks.
--   Public or private harassment.
--   Publishing others' private information, such as a physical or electronic address, without explicit permission.
--   Conduct which could reasonably be considered inappropriate for the forum in which it occurs.
+- The use of sexualized language or imagery and unwelcome sexual attention or advances.
+- Trolling, insulting/derogatory comments, and personal or political attacks.
+- Public or private harassment.
+- Publishing others' private information, such as a physical or electronic address, without explicit permission.
+- Conduct which could reasonably be considered inappropriate for the forum in which it occurs.
 
 All Milvus forums and spaces are meant for professional interactions, and any behavior which could reasonably be considered inappropriate in a professional setting is unacceptable.
 
@@ -45,4 +45,3 @@ Project maintainers who do not follow or enforce the Code of Conduct in good fai
 This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org/), version 1.4, available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
 
 For answers to common questions about this code of conduct, see https://www.contributor-covenant.org/faq
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