Update render.md

[czk694253817]

Text cannot be used in actual use. It can be used normally only by replacing it with HTML

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change? (check one)

• Yes
• No

If yes, please describe the impact and migration path for existing applications:

The PR fulfills these requirements:

• It's submitted to the dev branch.
• When resolving a specific issue, it's referenced in the PR's title (e.g. fix #xxx[,#xxx], where "xxx" is the issue number)
• All tests are passing: https://github.com/vuejs/vue-test-utils/blob/dev/.github/CONTRIBUTING.md#development-setup
• New/updated tests are included

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information:

[netlify]

✔️ Deploy Preview for vue-test-utils-v1 ready!

🔨 Explore the source changes: 0ad10de

🔍 Inspect the deploy log: https://app.netlify.com/sites/vue-test-utils-v1/deploys/622b0520ec02f6000827da12

😎 Browse the preview: https://deploy-preview-1968--vue-test-utils-v1.netlify.app