Add one more relevancy exercise

Author: erikhatcher

docs/60_Relevancy/8_Exercises.mdx

@@ -6,6 +6,10 @@ Fix this Playground so that the `score` being projected is the relevancy score A
 
 <Playground url="https://search-playground.corp.mongodb.com/tools/code-sandbox/snapshots/679cb3c3d0df60f0254e5d68">score not projected</Playground> (<Playground url="https://search-playground.mongodb.com/tools/code-sandbox/snapshots/679cb49ce97570c2714a0811">solution</Playground>)
 
+## project the score details
+
+* <Playground url="https://search-playground.mongodb.com/tools/code-sandbox/snapshots/679cc215e97570c2714a081d">task: add the score details into the results</Playground> (<Playground url="https://search-playground.mongodb.com/tools/code-sandbox/snapshots/679cc1b2d0df60f0254e5d85">solution</Playground>)
+
 ## score/sort by the `weight` field
 * <Playground url="https://search-playground.mongodb.com/tools/code-sandbox/snapshots/679cb652e97570c2714a0813">task: set the search (relevance) score to the value of our custom `weight` field</Playground> (<Playground url="https://search-playground.corp.mongodb.com/tools/code-sandbox/snapshots/679cb6fdd0df60f0254e5d6a">solution</Playground>)