chore: Update variables6.rs book link
@@ -68,7 +68,7 @@ then keyword 'let'.
Constants types must also always be annotated.
Read more about constants under 'Differences Between Variables and Constants' in the book's section 'Variables and Mutability':
-https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html
+https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html#differences-between-variables-and-constants
"""
# IF
