comments and cleanup (#341)

* comments and cleanup

* refine trigger

Author: Anton-4

.github/workflows/deploy-docs.yml

@@ -2,6 +2,8 @@ name: Deploy docs to Pages
 
 on:
   push:
+    branches:
+      - main
     paths:
       - '**.roc'
   release:

ci/expect_scripts/record-builder.exp

@@ -37,6 +37,7 @@ query_todos_by_status! = |db_path, status|
             path: db_path,
             query: "SELECT id, task FROM todos WHERE status = :status;",
             bindings: [{ name: ":status", value: String(status) }],
+            # This uses the record builder syntax: https://www.roc-lang.org/examples/RecordBuilder/README.html
             rows: { Sqlite.decode_record <-
                 id: Sqlite.i64("id") |> Sqlite.map_value(Num.to_str),
                 task: Sqlite.str("task"),