Update learn/relevancy/custom_ranking_rules.mdx

Co-authored-by: Many the fish <many@meilisearch.com>

Author: guimachiavelli

learn/relevancy/custom_ranking_rules.mdx

@@ -26,7 +26,7 @@ Custom ranking rules sort results in lexicographical order. For example, `Elena`
 
 Since this operation does not take into consideration document relevancy, in the majority of cases you should place custom ranking rules after the built-in ranking rules. This ensures that results are first sorted by relevancy, and the lexicographical sorting takes place only when two or more documents share the same ranking score.
 
-Setting a custom ranking role at a high position may result in a degraded search experience, since users will see documents in alphanumerical order instead of sorted by relevance.
+Setting a custom ranking rule at a high position may result in a degraded search experience, since users will see documents in alphanumerical order instead of sorted by relevance.
 
 ## Example