Clean up slo report (BQ + Datastudio) docs & create TF example about slo-generator HOT 5 OPEN

$ cat create_view.sql
CREATE VIEW `slo-generator-demo.slo_generator.last_report` AS
SELECT
   r2.*
FROM
   (
      SELECT
         r.service_name,
         r.feature_name,
         r.slo_name,
         r.window,
         MAX(r.timestamp_human) AS timestamp_human
      FROM
         `slo-generator-demo.slo_generator.custom_metrics` AS r
      GROUP BY
         r.service_name,
         r.feature_name,
         r.slo_name,
         r.window
      ORDER BY
         r.window
   )
   AS latest_report
   INNER JOIN
      `slo-generator-demo.slo_generator.custom_metrics` AS r2
      ON r2.service_name = latest_report.service_name
      AND r2.feature_name = latest_report.feature_name
      AND r2.slo_name = latest_report.slo_name
      AND r2.window = latest_report.window
      AND r2.timestamp_human = latest_report.timestamp_human
ORDER BY
   r2.service_name,
   r2.feature_name,
   r2.slo_name,
   r2.error_budget_policy_step_name
$ bq query `cat create_view.sql`
Error in query string: Error processing job 'slo-generator-demo:bqjob_r7e99d09194d84a93_000001848af1cff1_1': 1.1 - 0.0:
Unrecognized token CREATE.
[Try using standard SQL (https://cloud.google.com/bigquery/docs/reference/standard-sql/enabling-standard-sql)]

$ bq query --use_legacy_sql=false `cat create_view.sql`
Waiting on bqjob_r73661e3c9c6d85a4_000001848af3acc9_1 ... (0s) Current status: DONE   
Created slo-generator-demo.slo_generator.last_report