Update membership template

.github/PULL_REQUEST_TEMPLATE/apply_to_be_a_member.md

@@ -0,0 +1,19 @@
+# K8sGateway Org Membership Request
+
+<!--
+If you would like to become a member of the organization on GitHub, please submit a PR to the community repo using this template. Give us a few days to review and you should receive an invitation to join.
+-->
+
+GitHub user ID:
+
+Company affiliation:
+
+Requirements:
+
+- [ ] I have reviewed the project [contributing guide](https://github.com/k8sgateway/community/blob/main/CONTRIBUTING.md)
+- [ ] I have enabled [2FA](https://docs.github.com/en/authentication/securing-your-account-with-two-factor-authentication-2fa) on my GitHub account
+- [ ] I have joined #k8sgateway channel on the [CNCF slack](https://slack.cncf.io)
+- [ ] In this PR, I have added my GitHub username to the `orgs.k8sgateway.members` list in [org.yaml](https://github.com/k8sgateway/community/blob/main/org.yaml) (maintaining alphabetical order)
+
+Provide a link to at least one PR that you have successfully pushed to one of the project's repos:
+- 

.github/pull_request_template.md

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+To use an existing template, click the `Preview` tab and click on a template below. Otherwise, delete this text.
+
+- [Request Org Membership](?quick_pull=1&title=Request%20org%20membership%20for%20<user>&labels=membership&template=apply_to_be_a_member.md)

.gitignore

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+.vscode

CONTRIBUTOR_LADDER.md

@@ -41,13 +41,17 @@ An Organization Member must meet the responsibilities and has the requirements o
 * Requirements:
     * Must have successful contributions to the project, including at least one merged PR.
     * Must be member of the #k8sgateway channel on the [CNCF Slack](https://slack.cncf.io).
-    * Must have 2FA enabled on your GitHub account.
+    * Must have [2FA](https://docs.github.com/en/authentication/securing-your-account-with-two-factor-authentication-2fa) enabled on your GitHub account.
 * Privileges:
     * May be assigned Issues and Reviews.
     * May give commands to CI/CD automation.
     * May label/triage issues.
 
-To apply to become a member of the k8sgateway organization on GitHub, please open a GitHub PR in the community repository following the [template](.github/PULL_REQUEST_TEMPLATE/apply-to-be-a-member.md). The PR should include adding your user name to the list of members in our [organization file](./org.yaml). Please add your name in the correct alphabetical order to maintain a tidy organization file.
+To apply to become a member of the k8sgateway organization on GitHub, please open a GitHub PR in the community repository that contains the following:
+1. Use the [membership request template](.github/PULL_REQUEST_TEMPLATE/apply_to_be_a_member.md). This template is linked from the default template when you open a PR, or you can paste this URL in your browser `https://github.com/k8sgateway/community/compare/main...<my-fork>:<my-branch>?quick_pull=1&title=Request%20org%20membership%20for%20<user>&labels=membership&template=apply_to_be_a_member.md`, replacing:
+    - `<my-fork>:<my-branch>` with your fork/branch name, and
+    - `<user>` with your GitHub username
+1. Add your GitHub username to the list of members (under `orgs.k8sgateway.members`) in our [organization file](./org.yaml). Please add your name in the correct alphabetical order to maintain a tidy organization file.
 
 ### Reviewer