Update README.md

README.md

@@ -91,6 +91,6 @@ Every row of the dataset contains the following fields:
 - **`OpeningTags`**: `string`, a space separated list of openings. This is only set for puzzles starting before move 20.
 
 ## Additional Information
-- For a list of all possible puzzle themes and their description: [https://github.com/ornicar/lila/blob/master/translation/source/puzzleTheme.xml](puzzleTheme.xml)
+- For a list of all possible puzzle themes and their description: [puzzleTheme.xml](https://github.com/ornicar/lila/blob/master/translation/source/puzzleTheme.xml)
 - For a list of all possible openings: https://github.com/lichess-org/chess-openings
 <!-- TODO: link to https://lichess.org/@/lichess/blog/new-puzzles-are-here/X-S6gRUA and https://lichess.org/study/viiWlKjv -->