fix doc

[wuxingzhong]

fix nacos config doc

[codecov-commenter]

Codecov Report

Merging #1636 (267e542) into main (3231b35) will decrease coverage by 0.14%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1636      +/-   ##
==========================================
- Coverage   81.27%   81.13%   -0.15%     
==========================================
  Files          78       78              
  Lines        3429     3429              
==========================================
- Hits         2787     2782       -5     
- Misses        441      445       +4     
- Partials      201      202       +1     

Impacted Files	Coverage Δ
selector/node/ewma/node.go	83.87% <0.00%> (-3.23%)	⬇️
internal/context/context.go	97.01% <0.00%> (-2.99%)	⬇️

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