Fix indent in rust code

Author: reddevilmidzy

src/ambig-unambig-ty-and-consts.md

@@ -6,7 +6,7 @@ parse.
 
 ```rust
 fn func<T, const N: usize>(arg: T) {
-    //                           ^ Unambig type position
+    //                          ^ Unambig type position
     let a: _ = arg; 
     //     ^ Unambig type position
 
@@ -108,4 +108,4 @@ This has a number of benefits:
 [`ast::AnonConst`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_ast/ast/struct.AnonConst.html
 [`hir::GenericArg::Infer`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir/hir/enum.GenericArg.html#variant.Infer
 [`ast::ExprKind::Underscore`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_ast/ast/enum.ExprKind.html#variant.Underscore
-[`ast::Ty::Path(N)`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_ast/ast/enum.TyKind.html#variant.Path
+[`ast::Ty::Path(N)`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_ast/ast/enum.TyKind.html#variant.Path