Replace executables with link to demos readme

requirements/features-executable-from-links.yaml

@@ -8,6 +8,51 @@ requirements:
         url: https://github.com/ros2/demos/blob/iron/composition/README.md
     checks:
       - name: The executables in the README and present and work as expected.
+  - name: Demo Nodes (CPP) executables
+    labels:
+      - executable
+      - feature
+    links:
+      - name: Nodes cpp demos
+        url: https://github.com/ros2/demos/blob/iron/demo_nodes_cpp/README.md
+    checks:
+      - name: The executables in the README and present and work as expected.
+  - name: Demo Nodes Native (CPP) executables
+    labels:
+      - executable
+      - feature
+    links:
+      - name: Nodes cpp native demos
+        url: https://github.com/ros2/demos/blob/iron/demo_nodes_cpp_native/README.md
+    checks:
+      - name: The executables in the README and present and work as expected.
+  - name: Dummy Map Server executables
+    labels:
+      - executable
+      - feature
+    links:
+      - name: Dummy Map Server
+        url: https://github.com/ros2/demos/blob/iron/dummy_robot/dummy_map_server/README.md#run
+    checks:
+      - name: The executables in the README and present and work as expected.
+  - name: Dummy Sensors executables
+    labels:
+      - executable
+      - feature
+    links:
+      - name: Dummy Sensors
+        url: https://github.com/ros2/demos/blob/iron/dummy_robot/dummy_sensors/README.md#run
+    checks:
+      - name: The executables in the README and present and work as expected.
+  - name: Image-tools executables
+    labels:
+      - executable
+      - feature
+    links:
+      - name: Image-tools demos
+        url: https://github.com/ros2/demos/blob/iron/image_tools/README.md#run
+    checks:
+      - name: The executables in the README and present and work as expected.
   - name: Intra-process executables
     labels:
       - executable

requirements/features-executable.yaml

@@ -5,90 +5,6 @@
 # with data from 'executable-features.csv'.
 
 requirements:
-  - name: Executables in `demo_nodes_cpp`
-    labels:
-      - executable
-      - feature
-    checks:
-      - name: Check `talker`
-        try:
-          - stdin: ros2 run demo_nodes_cpp talker
-      - name: Check `listener`
-        try:
-          - stdin: ros2 run demo_nodes_cpp listener
-      - name: Check `listener_best_effort`
-        try:
-          - stdin: ros2 run demo_nodes_cpp listener_best_effort
-      - name: Check `talker_serialized_message`
-        try:
-          - stdin: ros2 run demo_nodes_cpp talker_serialized_message
-      - name: Check `listener_serialized_message`
-        try:
-          - stdin: ros2 run demo_nodes_cpp listener_serialized_message
-      - name: Check `talker_loaned_message`
-        try:
-          - stdin: ros2 run demo_nodes_cpp talker_loaned_message
-      - name: Check `add_two_ints_server`
-        try:
-          - stdin: ros2 run demo_nodes_cpp add_two_ints_server
-      - name: Check `add_two_ints_client`
-        try:
-          - stdin: ros2 run demo_nodes_cpp add_two_ints_client
-      - name: Check `add_two_ints_client_async`
-        try:
-          - stdin: ros2 run demo_nodes_cpp add_two_ints_client_async
-      - name: Check `list_parameters`
-        try:
-          - stdin: ros2 run demo_nodes_cpp list_parameters
-      - name: Check `list_parameters_async`
-        try:
-          - stdin: ros2 run demo_nodes_cpp list_parameters_async
-      - name: Check `set_and_get_parameters`
-        try:
-          - stdin: ros2 run demo_nodes_cpp set_and_get_parameters
-      - name: Check `set_and_get_parameters_async`
-        try:
-          - stdin: ros2 run demo_nodes_cpp set_and_get_parameters_async
-      - name: Check `parameter_events`
-        try:
-          - stdin: ros2 run demo_nodes_cpp parameter_events
-      - name: Check `parameter_events_async`
-        try:
-          - stdin: ros2 run demo_nodes_cpp parameter_events_async
-      - name: Check `parameter_blackboard`
-        try:
-          - stdin: ros2 run demo_nodes_cpp parameter_blackboard
-      - name: Check `even_parameters_node`
-        try:
-          - stdin: ros2 run demo_nodes_cpp even_parameters_node
-      - name: Check `one_off_timer`
-        try:
-          - stdin: ros2 run demo_nodes_cpp one_off_timer
-      - name: Check `reuse_timer`
-        try:
-          - stdin: ros2 run demo_nodes_cpp reuse_timer
-      - name: Check `allocator_tutorial`
-        try:
-          - stdin: ros2 run demo_nodes_cpp allocator_tutorial
-  - name: Executables in `demo_nodes_cpp_native`
-    labels:
-      - executable
-      - feature
-    checks:
-      - name: Check `talker`
-        try:
-          - stdin: ros2 run demo_nodes_cpp_native talker
-  - name: Executables in `image_tools`
-    labels:
-      - executable
-      - feature
-    checks:
-      - name: Check `cam2image`
-        try:
-          - stdin: ros2 run image_tools cam2image
-      - name: Check `showimage`
-        try:
-          - stdin: ros2 run image_tools showimage
   - name: Executables in `quality_of_service_demo_cpp`
     labels:
       - executable
@@ -416,25 +332,6 @@ requirements:
       - name: Check `rttest_plot`
         try:
           - stdin: ros2 run rttest rttest_plot
-  - name: Executables in `dummy_map_server`
-    labels:
-      - executable
-      - feature
-    checks:
-      - name: Check `dummy_map_server`
-        try:
-          - stdin: ros2 run dummy_map_server dummy_map_server
-  - name: Executables in `dummy_sensors`
-    labels:
-      - executable
-      - feature
-    checks:
-      - name: Check `dummy_joint_states`
-        try:
-          - stdin: ros2 run dummy_sensors dummy_joint_states
-      - name: Check `dummy_laser`
-        try:
-          - stdin: ros2 run dummy_sensors dummy_laser
   - name: Executables in `dummy_robot_bringup`
     labels:
       - executable