diff --git a/code_thingies/dbtlearn/models/fact/fact_reviews.sql b/code_thingies/dbtlearn/models/fact/fact_reviews.sql
index 8a707fa..9fd3dc8 100644
--- a/code_thingies/dbtlearn/models/fact/fact_reviews.sql
+++ b/code_thingies/dbtlearn/models/fact/fact_reviews.sql
@@ -9,7 +9,9 @@ WITH src_reviews AS (
     FROM
         {{ ref('src_reviews') }}
 )
-SELECT *
+SELECT
+    {{ dbt_utils.surrogate_key(['listing_id', 'review_date', 'reviewer_name', 'review_text']) }} as review_id,
+    *
 FROM
     src_reviews
 WHERE
diff --git a/code_thingies/dbtlearn/models/src/src_reviews.sql b/code_thingies/dbtlearn/models/src/src_reviews.sql
index 987faeb..2a99151 100644
--- a/code_thingies/dbtlearn/models/src/src_reviews.sql
+++ b/code_thingies/dbtlearn/models/src/src_reviews.sql
@@ -5,6 +5,7 @@ WITH raw_reviews AS (
 SELECT
 	listing_id,
 	date AS review_date,
+    reviewer_name AS reviewer_name,
 	comments AS review_text,
 	sentiment AS review_sentiment
 FROM
diff --git a/code_thingies/dbtlearn/packages.yml b/code_thingies/dbtlearn/packages.yml
new file mode 100644
index 0000000..9e74ff0
--- /dev/null
+++ b/code_thingies/dbtlearn/packages.yml
@@ -0,0 +1,3 @@
+packages:
+  - package: dbt-labs/dbt_utils
+    version: 0.8.0
\ No newline at end of file
diff --git a/notes/8.md b/notes/8.md
index bd7e45a..33003e5 100644
--- a/notes/8.md
+++ b/notes/8.md
@@ -80,4 +80,31 @@ You can also define your own custom generic tests.
 
 - Macros are jinja templates.
 - There are many built-in macros in dbt, but you can also use your own macros.
-- dbt packages exist and you can use them to have more tests and macros that you can use.
\ No newline at end of file
+- dbt packages exist and you can use them to have more tests and macros that you can use.
+
+
+## Documentation
+
+- Documentation is kept in the repo (yay)
+- Documentation can be defined in yaml files or in standalone markdown files. For example, the landing page can be customized with an `overview.md` file.
+- Documentation can be quick-served with dbt, but ideally you should compile it and serve it with a regular web server, like Nginx.
+- 
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