docs: Minor doc updates to mention support for dbt docs

Author: tomasfarias

README.md

@@ -96,6 +96,7 @@ Currently, the following `dbt` commands are supported:
 * `compile`
 * `debug`
 * `deps`
+* `docs generate`
 * `ls`
 * `parse`
 * `run`

examples/dbt_project_in_s3_dag.py

@@ -3,7 +3,7 @@
 
 from airflow import DAG
 from airflow.utils.dates import days_ago
-from airflow_dbt_python.dbt.operators import DbtRunOperator
+from airflow_dbt_python.dbt.operators import DbtDocsGenerateOperator, DbtRunOperator
 
 with DAG(
     dag_id="example_basic_dbt_run_with_s3",
@@ -12,6 +12,7 @@
     catchup=False,
     dagrun_timeout=dt.timedelta(minutes=60),
 ) as dag:
+    # Project files will be pulled from "s3://my-bucket/dbt/profiles/key/prefix/"
     dbt_run = DbtRunOperator(
         task_id="dbt_run_hourly",
         project_dir="s3://my-bucket/dbt/project/key/prefix/",
@@ -22,3 +23,13 @@
         profile="my-project",
         full_refresh=False,
     )
+
+    # Documentation files (target/manifest.json, target/index.html, and
+    # target/catalog.json) will be pushed back to S3 after compilation is done.
+    dbt_docs = DbtDocsGenerateOperator(
+        task_id="dbt_run_hourly",
+        project_dir="s3://my-bucket/dbt/project/key/prefix/",
+        profiles_dir="s3://my-bucket/dbt/profiles/key/prefix/",
+    )
+
+    dbt_run >> dbt_docs