add mermaid diagram

[peterdudfield]

Pull Request

Description

Add diagram how how things are blended

https://github.com/openclimatefix/uk-pv-forecast-blend/issues/14

How Has This Been Tested?

This is just markdown changes

• [x] Yes

Checklist:

• [ ] My code follows OCF's coding style guidelines
• [x] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have checked my code and corrected any misspellings

[codecov[bot]]

Codecov Report

Merging #16 (5c81bf8) into main (9a00f58) will increase coverage by 0.61%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #16      +/-   ##
==========================================
+ Coverage   95.35%   95.97%   +0.61%     
==========================================
  Files           4        4              
  Lines         323      323              
==========================================
+ Hits          308      310       +2     
+ Misses         15       13       -2     

see 2 files with indirect coverage changes

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[peterdudfield]

Ill push this through @devsjc but I'd be very happy if you want to have a review of this

[devsjc]

Looks great!