diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..240eed7
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,27 @@
+name: Test Schemas 
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Python runtime
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.10.2
+
+      - name: Build and test
+        run: |
+          pip install -r requirements.txt
+          make clean
+          make build
diff --git a/docs/guides/general-structure.md b/docs/guides/general-structure.md
index fc35425..560b8a7 100644
--- a/docs/guides/general-structure.md
+++ b/docs/guides/general-structure.md
@@ -44,7 +44,7 @@ From here, the most relevant files and folders are:
 
 
 [Google Takeout]: https://takeout.google.com/settings/takeout
-[Raw Location History Data]: raw_location.md
-[Semantic Location History Data]: semantic_location.md
+[Raw Location History Data]: raw-location.md
+[Semantic Location History Data]: semantic-location.md
 [Records.json]: ../reference/records.md
 [Settings.json]: ../reference/settings.md
diff --git a/docs/guides/raw-location.md b/docs/guides/raw-location.md
index 22730a0..6076b67 100644
--- a/docs/guides/raw-location.md
+++ b/docs/guides/raw-location.md
@@ -39,7 +39,7 @@ From this, the most essential fields are:
 
 For more information on the other possible fields see the full [format definition][Location Record].
 
-[General Structure]: general_structure.md
+[General Structure]: general-structure.md
 [Location Record]: ../reference/records.md#location-record
 [ISO 8601]: https://en.wikipedia.org/wiki/ISO_8601
 [UTC]: https://en.wikipedia.org/wiki/Coordinated_Universal_Time
diff --git a/requirements.txt b/requirements.txt
index fc6883b..57ef8df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,16 +1,16 @@
 attrs==21.4.0
-certifi==2022.12.7
+certifi==2023.7.22
 charset-normalizer==2.0.12
 click==8.1.2
 colorama==0.4.6
 commonmark==0.9.1
 ghp-import==2.0.2
 gitdb==4.0.9
-GitPython==3.1.31
+GitPython==3.1.41
 hypothesis==6.45.0
 idna==3.4
 importlib-metadata==4.11.3
-Jinja2==3.0.3
+Jinja2==3.1.3
 json-source-map==1.0.1
 Markdown==3.3.6
 MarkupSafe==2.1.1
@@ -35,6 +35,6 @@ smmap==5.0.0
 sortedcontainers==2.4.0
 tabulate==0.8.9
 termcolor==1.1.0
-urllib3==1.26.15
+urllib3==1.26.18
 watchdog==2.1.7
 zipp==3.8.0
diff --git a/tools/jsonschema_to_md/__main__.py b/tools/jsonschema_to_md/__main__.py
index 94d8d0a..ae0126a 100644
--- a/tools/jsonschema_to_md/__main__.py
+++ b/tools/jsonschema_to_md/__main__.py
@@ -38,9 +38,12 @@ def main():
         JSONSchemaRenderer(logger=None).render_md(inp, out, title=title)
     except (JSONSchemaError, ValidationError) as e:
         logger.error(e)
+        return 1
     except Exception as e:
         logger.exception(e)
-
+        return 1
+    else:
+        return 0
 
 if __name__ == "__main__":
-    main()
+    raise SystemExit(main())
diff --git a/tools/jsonschema_to_md/schema_to_md.py b/tools/jsonschema_to_md/schema_to_md.py
index a9604f0..55d9085 100644
--- a/tools/jsonschema_to_md/schema_to_md.py
+++ b/tools/jsonschema_to_md/schema_to_md.py
@@ -32,9 +32,7 @@ def __init__(self, logger=None):
             logging.basicConfig(level=logging.NOTSET, format="%(message)s", datefmt="[%X]")
             self.logger = logging.getLogger(__name__)
 
-    def _validate_schema(self, schema):
-        required_fields = ["type", "title", "description"]
-
+    def _validate_schema(self, schema, required_fields=["type", "title", "description"]):
         for field in required_fields:
             if getattr(schema, field) is None:
                 raise ValidationError(field, schema)
@@ -42,10 +40,11 @@ def _validate_schema(self, schema):
         if schema.type == "array":
             if not schema.item_schema:
                 raise ValidationError("items", schema)
-
-            for field in required_fields:
-                if getattr(schema.item_schema, field) is None:
-                    raise ValidationError(field, schema.item_schema)
+            
+            if schema.item_schema.type == "object":
+                self._validate_schema(schema.item_schema)
+            else:
+                self._validate_schema(schema.item_schema, required_fields=["type"])
 
     def _example_text(self, example, simple=False):
         def json_text(d, simple):