Fix LALRPOP book link in development guide
@@ -135,7 +135,7 @@ an Abstract Syntax Tree (AST):
- The Parser relies on `LALRPOP`, a Rust parser generator framework. The
LALRPOP definition of Python's grammar is in `parser/src/python.lalrpop`.
- More information on parsers and a tutorial can be found in the
- [LALRPOP book](https://lalrpop.github.io/lalrpop/README.html).
+ [LALRPOP book](https://lalrpop.github.io/lalrpop/).
- AST: `ast/` implements in Rust the Python types and expressions
represented by the AST nodes.
