fix(ingestion/looker): fix doc for sql parsing documentation

metadata-ingestion/docs/sources/looker/lookml_post.md

@@ -1,14 +1,12 @@
 #### Configuration Notes
 
-:::note
-
-The integration can use an SQL parser to try to parse the tables the views depends on.
-
-:::
+1. If a view contains a liquid template (e.g. `sql_table_name: {{ user_attributes['db']}}.kafka_streaming.events, with db=ANALYTICS_PROD`), then you will need to specify the values of those variables in the `liquid_variable` config as shown below 
+ ```
+ liquid_variable:
+ user_attributes:
+ db: ANALYTICS_PROD
 
-This parsing is disabled by default, but can be enabled by setting `parse_table_names_from_sql: True`. The default parser is based on the [`sqllineage`](https://pypi.org/project/sqllineage/) package.
-As this package doesn't officially support all the SQL dialects that Looker supports, the result might not be correct. You can, however, implement a custom parser and take it into use by setting the `sql_parser` configuration value. A custom SQL parser must inherit from `datahub.utilities.sql_parser.SQLParser`
-and must be made available to Datahub by ,for example, installing it. The configuration then needs to be set to `module_name.ClassName` of the parser.
+ ```
 
 ### Multi-Project LookML (Advanced)