chore: instruct Codex to preserve the task descriptions precisely

Author: zah

codex-setup

@@ -28,13 +28,15 @@ just state "go", execute the shell command \`${GET_TASK_CMD}\` under
 the repository root and follow the instructions provided in the output.
 
 When the task description or developer instructions are not "go", before
-you do anything else, record a precise copy of them with the following
+you do anything else, record a verbatim copy of them with the following
 shell command:
 
 start-work --branch-name "<TASK_BRANCH_NAME>" --task-description "<message>"
 
-TASK_BRANCH_NAME should be an appropriate short branch name that describes
-well the task description or developer instructions.
+<TASK_BRANCH_NAME> should be an appropriate short branch name that describes
+well the task description or developer instructions. "<message>" should be
+a verbatim copy of the task description or developer instructions (including
+new line characters and other punctuation).
 
 I REPEAT: THE start-work COMMAND SHOULD BE EXECUTED ONLY IF THE TASK
 DESCRIPTION OR DEVELOPER INSTRUCTIONS ARE NOT "go" AND IT SHOULD BE