Mark day 24 as solved

Author: fwcd

README.md

@@ -29,7 +29,7 @@ My solutions to the [Advent of Code 2024](https://adventofcode.com/2024), writte
 - [x] [**Day 21**](day21): [Scala](day21/src/day21.scala)
 - [x] [**Day 22**](day22): [Dart](day22/src/day22.dart)
 - [x] [**Day 23**](day23): [Go](day23/src/day23.go)
-- [ ] [**Day 24**](day24): [Crystal](day24/src/day24.cr)
+- [x] [**Day 24**](day24): [Crystal](day24/src/day24.cr)
 
 ## Development
 

paths.json

@@ -189,6 +189,7 @@
       "codemirror": "crystal",
       "name": "Crystal"
     },
-    "path": "day24/src/day24.cr"
+    "path": "day24/src/day24.cr",
+    "completed": true
   }
 ]