docs: the CLA asks for the phrase its bot actually accepts

The signing instructions named a phrase the workflow ignores, and told
contributors to put it in the PR description rather than a comment - following
them left a PR blocked forever. Both files now quote the action's own phrase.
Drops the note that CLA Assistant still had to be set up; it is running.

CLA.md

@@ -3,11 +3,6 @@
 **Project:** EdenText
 **Maintainer / Licensor:** Steffen Becker <stffn.becker@gmail.com> (the "Maintainer")
 
-> ⚠️ **Note:** This is a plain-language template adapted from common individual CLAs
-> (in the spirit of the Apache Individual CLA). It has **not** been reviewed by a
-> lawyer. Before relying on it commercially, have it reviewed by qualified legal
-> counsel in your jurisdiction.
-
 By submitting a Contribution to this project (for example, via a pull request,
 patch, or commit), You agree to the following terms for any past and future
 Contributions submitted to the project.
@@ -84,8 +79,8 @@ kind**, either express or implied.
 ---
 
 **Agreement.** By submitting a Contribution to the project, You indicate Your
-acceptance of this CLA. Where a signature is requested, add to Your pull request:
+acceptance of this CLA. To record the signature, comment on Your pull request:
 
 ```
-I have read and agree to the CLA. — <Full Name>, <email>, <date>
+I have read the CLA Document and I hereby sign the CLA
 ```

CONTRIBUTING.md

@@ -53,16 +53,16 @@ You keep the copyright to your contribution — you are only granting a license.
 
 ### How to sign
 
-> **Recommended:** set up [CLA Assistant](https://github.com/cla-assistant/cla-assistant)
+A bot asks on your first pull request and records the signature. To sign, post
-> so the agreement is presented and recorded automatically on each pull request.
+this as a **comment on the pull request** — the exact wording, nothing added:
-
-Until that is in place, sign by adding the following line to your pull request
-description (replacing the placeholders):
 
 ```
-I have read and agree to the CLA. — <Full Name>, <email>, <date>
+I have read the CLA Document and I hereby sign the CLA
 ```
 
+Comment `recheck` if the check does not pick it up. You sign once; later pull
+requests are recognised automatically.
+
 ## Reporting bugs / requesting features
 
 Please open a GitHub issue with clear reproduction steps (for bugs) or a concise