add docs for db and redis

src/content/docs/modules/db/sqlite.md

@@ -0,0 +1,21 @@
+---
+title: SQLite
+sidebar:
+    order: 1
+---
+The `db.sqlite` module can open/create SQLite databases 
+
+- **type**: `db.sqlite`
+- **params**:
+    - **dsn**: the data source name, this can be a file path or the special `:memory:` name for an in-memory DB
+
+## Cap
+
+### Example snippet
+Opens an in-memory SQLite database
+```
+- id: db
+  type: db.sqlite
+    params:
+      dsn: ":memory:"
+```