[docs] Add Search with Algolia quick start guide

[MattieBelt]

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[vercel]

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[codecov]

Codecov Report

Merging #41 (6cf8077) into master (b9197bc) will increase coverage by 1.28%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #41      +/-   ##
==========================================
+ Coverage   98.07%   99.35%   +1.28%     
==========================================
  Files          29       29              
  Lines         156      156              
  Branches       25       25              
==========================================
+ Hits          153      155       +2     
+ Misses          3        1       -2     

Impacted Files	Coverage Δ
.../strapi-plugin-search/server/services/lifecycle.js	100.00% <0.00%> (+8.69%)	⬆️

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