improve CONTRIBUTING guide

Author: pitmonticone

CONTRIBUTING.md

@@ -17,9 +17,9 @@ Contributions to the project are made through GitHub pull requests (PRs) that co
 
 ### 2. Claiming a Task
 
-- To claim a task, comment `claim` on the relevant GitHub issue.
+- To claim a task, comment the single word `claim` on the relevant GitHub issue.
 - If no other user is assigned, you will automatically be assigned to the task, and the issue will move to the `Claimed` column.
-- You may only claim one task at a time. If you decide not to work on a task after claiming it, comment `disclaim` on the issue. This will unassign you and return the issue to the `Unclaimed` column, making it available for others to claim.
+- You may only claim one task at a time. If you decide not to work on a task after claiming it, comment the single word `disclaim` on the issue. This will unassign you and return the issue to the `Unclaimed` column, making it available for others to claim.
 
 ### 3. Working on the Task
 
@@ -28,17 +28,17 @@ Once you are assigned to an issue, begin working on the corresponding task. You
 ### 4. Submitting a Pull Request
 
 - When you are ready to submit your solution, create a PR from your working branch to the project’s `main` branch.
-- After submitting the PR, comment `propose PR #PR_NUMBER` on the original issue. This links your PR to the task, and the task will move to the `In Progress` column on the dashboard.
+- After submitting the PR, comment the single phrase `propose PR #PR_NUMBER` on the original issue. This links your PR to the task, and the task will move to the `In Progress` column on the dashboard.
 - A task can only move to `In Progress` if it has been claimed by the user proposing the PR.
 
 ### 5. Withdrawing or Updating a PR
 
-- If you need to withdraw your PR, comment `withdraw PR #PR_NUMBER` on the issue. The task will return to the `Claimed` column, but you will remain assigned to the issue.
-- To submit an updated PR after withdrawal, comment `propose PR #NEW_PR_NUMBER` following the same process outlined in step 4.
+- If you need to withdraw your PR, comment the single phrase `withdraw PR #PR_NUMBER` on the issue. The task will return to the `Claimed` column, but you will remain assigned to the issue.
+- To submit an updated PR after withdrawal, comment the single phrase `propose PR #NEW_PR_NUMBER` following the same process outlined in step 4.
 
 ### 6. Review Process
 
-- After finishing the task and ensuring your PR is ready for review, comment `awaiting-review` on the PR. This will add the `awaiting-review` label to your PR and move the task from `In Progress` to the `In Review` column of the dashboard.
+- After finishing the task and ensuring your PR is ready for review, comment the single word `awaiting-review` on the PR. This will add the `awaiting-review` label to your PR and move the task from `In Progress` to the `In Review` column of the dashboard.
 - The project maintainers will review the PR. They may request changes, approve the PR, or provide feedback.
 
 ### 7. Task Completion