Update install-eventing-with-yaml.md

[mwmahlberg]

File is named eventing-jsm.yaml in v1.18.0

"Fixes #issue-number" or "Add description of the problem this PR solves"

Proposed Changes

• None. I assume this simply to be an oversight while renaming the release file

[linux-foundation-easycla]

• ✅login: mwmahlberg / (968b0fc)

The committers listed above are authorized under a signed CLA.

[netlify]

✅ Deploy Preview for knative ready!

Built without sensitive environment variables

Name	Link
🔨 Latest commit	968b0fc
🔍 Latest deploy log	https://app.netlify.com/sites/knative/deploys/68208a510deceb0008b7c694
😎 Deploy Preview	https://deploy-preview-6269--knative.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[knative-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: mwmahlberg
Once this PR has been reviewed and has the lgtm label, please assign pierdipi for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[knative-prow]

Welcome @mwmahlberg! It looks like this is your first PR to knative/docs 🎉