Remove filekey field from examples.

Author: kevinbackhouse

README.md

@@ -248,7 +248,6 @@ For example, to start a stdio MCP server that are implemented in a python file:
 seclab-taskflow-agent:
   version: 1
   filetype: toolbox
-  filekey: toolboxes/echo
 
 server_params:
   kind: stdio
@@ -298,7 +297,6 @@ Example:
 seclab-taskflow-agent:
   version: 1
   filetype: taskflow
-  filekey: taskflows/examples/example.yaml
 
 taskflow:
   - task:
@@ -424,7 +422,6 @@ Model configs are configured through YAML files of `filetype` `model_config`. Th
 seclab-taskflow-agent:
   version: 1
   filetype: model_config
-  filekey: configs.model_config
 models:
    gpt_latest: gpt-5
 ```