Fix
Doc incorrectly references "toolchains/BUILD" (plural) instead of "toolchain/BUILD"
@@ -230,7 +230,7 @@ slightly between different versions of clang.
`cc_common.create_cc_toolchain_config_info()` creates the needed provider
`CcToolchainConfigInfo`. To use the `cc_toolchain_config` rule, add a load
- statement to `toolchains/BUILD`:
+ statement to `toolchain/BUILD`:
```python
load(":cc_toolchain_config.bzl", "cc_toolchain_config")
