updating summer schedule with existing runs

Author: hadasah

_data/schedule.yml

@@ -1 +1 @@
-schedules/25-spring.yml
+schedules/25-summer.yml

_data/schedules/25-summer.yml

@@ -0,0 +1,13 @@
+- date: "2025-06-21"
+  plan:
+    - time: "8:30"
+      route_id: roosevelt-carkeek-phinney-ridge-loop
+    - time: "10:45"
+      route_id: roosevelt-green-lake-loop
+
+- date: "2025-06-28"
+  plan:
+    - time: "8:30"
+      route_id: gas-works-locks-salmon-bay-loop
+    - time: "10:00"
+      route_id: gas-works-lake-union-loop