Scrabble is a trademark name.

It should be capitalized.  It is also a noun, meaning a "doodle", and a verb, such as what this description could be considered.

In our case, we are referring to the trademarked name of the game Scrabble.

exercises/scrabble-score/description.md

@@ -1,4 +1,4 @@
-Given a word, compute the scrabble score for that word.
+Given a word, compute the Scrabble score for that word.
 
 ## Letter Values