Fix docs links (#3477)

Fixes #3437
Fixes #3458

Author: illicitonion

crate_universe/extensions.bzl

@@ -6,7 +6,7 @@ This doc describes using crate_universe with bzlmod.
 
 If you're using a WORKSPACE file, please see [the WORKSPACE equivalent of this doc](crate_universe_workspace.html).
 
-There are some examples of using crate_universe with bzlmod in the [example folder](https://github.com/bazelbuild/rules_rust/examples/bzlmod).
+There are some examples of using crate_universe with bzlmod in the [example folder](https://github.com/bazelbuild/rules_rust/tree/main/examples).
 
 # Table of Contents
 
@@ -1361,7 +1361,7 @@ Environment Variables:
 | `CARGO_BAZEL_GENERATOR_SHA256` | The sha256 checksum of the file located at `CARGO_BAZEL_GENERATOR_URL` |
 | `CARGO_BAZEL_GENERATOR_URL` | The URL of a cargo-bazel binary. This variable takes precedence over attributes and can use `file://` for local paths |
 | `CARGO_BAZEL_ISOLATED` | An authoritative flag as to whether or not the `CARGO_HOME` environment variable should be isolated from the host configuration |
-| `CARGO_BAZEL_REPIN` | An indicator that the dependencies represented by the rule should be regenerated. `REPIN` may also be used. See [Repinning / Updating Dependencies](#repinning--updating-dependencies) for more details. |
+| `CARGO_BAZEL_REPIN` | An indicator that the dependencies represented by the rule should be regenerated. `REPIN` may also be used. See [Repinning / Updating Dependencies](crate_universe_workspace.html#repinning--updating-dependencies) for more details. |
 | `CARGO_BAZEL_REPIN_ONLY` | A comma-delimited allowlist for rules to execute repinning. Can be useful if multiple instances of the repository rule are used in a Bazel workspace, but repinning should be limited to one of them. |
 
 """,