docs: update CLA information (#15630)

* docs: udpate CLA information

* docs: update CLA info

* docs: suggestion

Co-authored-by: Nicholas C. Zakas <nicholas@humanwhocodes.com>

* Update docs/developer-guide/contributing/README.md

Co-authored-by: Nicholas C. Zakas <nicholas@humanwhocodes.com>

docs/developer-guide/contributing/README.md

@@ -8,10 +8,6 @@ This guide is intended for anyone who wants to contribute to an ESLint project.
 
 ESLint welcomes contributions from everyone and adheres to the [OpenJS Foundation Code of Conduct](https://eslint.org/conduct). We kindly request that you read over our code of conduct before contributing.
 
-## [Signing the CLA](https://openjsf.org/about/the-openjs-foundation-cla/)
-
-In order to submit code or documentation to an ESLint project, you will need to electronically sign our [Contributor License Agreement](https://github.com/openjs-foundation/easycla). The CLA is the commonly used Apache-style template, and is you giving us permission to use your contribution. You only need to sign the CLA once for any OpenJS Foundation projects that use EasyCLA.
-
 ## [Bug Reporting](reporting-bugs)
 
 Think you found a problem? We'd love to hear about it. This section explains how to submit a bug, the type of information we need to properly verify it, and the overall process.
@@ -39,3 +35,7 @@ Have some extra time and want to contribute? This section talks about the proces
 ## Submitting a [Pull Request](pull-requests.md)
 
 We're always looking for contributions from the community. This section explains the requirements for pull requests and the process of contributing code.
+
+## Signing the CLA
+
+In order to submit code or documentation to an ESLint project, you will need to electronically sign our Contributor License Agreement. The CLA is the commonly used Apache-style template, and is you giving us permission to use your contribution. You only need to sign the CLA once for any OpenJS Foundation projects that use EasyCLA. You will be asked to sign the CLA in the first pull request you open.

docs/developer-guide/contributing/pull-requests.md

@@ -6,7 +6,6 @@ If you want to contribute to an ESLint repo, please use a GitHub pull request. T
 
 If you'd like to work on a pull request and you've never submitted code before, follow these steps:
 
-1. Sign our [Contributor License Agreement](https://cla.js.foundation/eslint/eslint).
 1. Set up a [development environment](../development-environment.md).
 1. If you want to implement a breaking change or a change to the core, ensure there's an issue that describes what you're doing and the issue has been accepted. You can create a new issue or just indicate you're [working on an existing issue](working-on-issues.md). Bug fixes, documentation changes, and other pull requests do not require an issue.
 
@@ -137,6 +136,8 @@ git push -f origin issue1234
 
 Now you're ready to send the pull request. Go to your ESLint fork and then follow the [GitHub documentation](https://help.github.com/articles/creating-a-pull-request) on how to send a pull request.
 
+In order to submit code or documentation to an ESLint project, you’ll be asked to sign our CLA when you send your first pull request. (Read more about the Open JS Foundation CLA process at <https://cla.openjsf.org/>.)
+
 ## Following Up
 
 Once your pull request is sent, it's time for the team to review it. As such, please make sure to: