Update Eluid's Eggs metadata blurb (#2337)

Author: BNAndras

exercises/pop-count/metadata.toml

@@ -1,4 +1,4 @@
 title = "Eliud's Eggs"
-blurb = "Help Eluid count the number of eggs in her chicken coop by counting the number of 1 bits in a binary representation."
+blurb = "Help Eliud count the number of eggs in her chicken coop by counting the number of 1 bits in a binary representation."
 source = "Christian Willner, Eric Willigers"
 source_url = "https://forum.exercism.org/t/new-exercise-suggestion-pop-count/7632/5"