Add skylark_library rule (#8)

`skylark_library` targets aggregate `.bzl` files and their dependencies for unit tests as well as Skydoc generation.

1 files changed, 6 insertions, 0 deletions

diff --git a/README.md b/README.md
index 3eea2f3..bfefeda 100644
--- a/README.md
+++ b/README.md
@@ -70,3 +70,9 @@ Steps to add a module to Skylib:
    ```
 
 1. Add unit tests for your module in the `tests` directory.
+
+## `skylark_library`
+
+The `skylark_library.bzl` rule can be used to aggregate a set of
+Skylark files and its dependencies for use in test targets and
+documentation generation.