docs: Fix typo

Signed-off-by: Evgenii Baidakov <[email protected]>

docs/configuration.md

@@ -260,7 +260,7 @@ placement_policy:
 | Parameter        | Type     | SIGHUP reload | Default value | Description                                                                                                                                                                                                                                  |
 |------------------|----------|---------------|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | `default`        | `string` | yes           | `REP 3`       | Default policy of placing containers in NeoFS. If a user sends a request `CreateBucket` and doesn't define policy for placing of a container in NeoFS, the S3 Gateway will put the container with default policy.                            |
-| `region_mapping` | `string` | yes           |               | Path to file that maps aws `LocationContraint` values to NeoFS placement policy. The similar to `--container-policy` flag in `neofs-s3-authmate` util, see in [docs](./authmate.md#containers-policy)                                        |
+| `region_mapping` | `string` | yes           |               | Path to file that maps aws `LocationConstraint` values to NeoFS placement policy. The similar to `--container-policy` flag in `neofs-s3-authmate` util, see in [docs](./authmate.md#containers-policy)                                       |
 | `locations`      | `map`    | yes           |               | Hashtable that maps aws LocationConstraint values to NeoFS placement policy. It's similar to the region_mapping config option, but allows for in-place configuration and extends/overrides values from region_mapping file if it's provided. |
 
 File for `region_mapping` must contain something like this: