Add changelog entry

Author: amartani

CHANGELOG.md

@@ -116,6 +116,10 @@ END_UNRELEASED_TEMPLATE
   dep is not added to the {obj}`py_test` target.
 * (gazelle) New directive `gazelle:python_generate_proto`; when `true`,
   Gazelle generates `py_proto_library` rules for `proto_library`. `false` by default.
+* (gazelle) Added directive `# gazelle:python_resolve_sibling_imports` (default
+  `enabled` for backwards-compatibility). When enabled, gazelle will allow absolute
+  imports to be resolved to sibling modules (Python 2's behavior without
+  `absolute_import`).
 
 {#v0-0-0-removed}
 ### Removed

gazelle/README.md

@@ -226,6 +226,8 @@ Python-specific directives are as follows:
 | Controls whether to generate a separate `pyi_deps` attribute for type-checking dependencies or merge them into the regular `deps` attribute. When `false` (default), type-checking dependencies are merged into `deps` for backward compatibility. When `true`, generates separate `pyi_deps`. Imports in blocks with the format `if typing.TYPE_CHECKING:`/`if TYPE_CHECKING:` and type-only stub packages (eg. boto3-stubs) are recognized as type-checking dependencies. |
 | [`# gazelle:python_generate_proto`](#directive-python_generate_proto)                                                                                                                                                                                                                                                                | `false` |
 | Controls whether to generate a `py_proto_library` for each `proto_library` in the package. By default we load this rule from the `@protobuf` repository; use `gazelle:map_kind` if you need to load this from somewhere else. |
+| `# gazelle:python_resolve_sibling_imports` | `true` |
+| Allows absolute imports to be resolved to sibling modules (Python 2's behavior without `absolute_import`). |
 
 #### Directive: `python_root`: