Added docs for SQLite plugin

docs/en/plugins/sqlite.md

@@ -0,0 +1,23 @@
+Plugin SQLite
+-------------
+
+Connects to a given SQLite DB and runs a list of queries.
+
+Configuration
+=============
+
+### Examples
+
+```yaml
+build_settings:
+    sqlite:
+        path: '/path/to/sqlite.sqlite'
+
+setup:
+    sqlite:
+        - "CREATE DATABASE my_app_test;"
+
+complete:
+    sqlite:
+        - "DROP DATABASE my_app_test;"
+```