Add Encer to Marketing & SEO

[changejang]

What's being added?

Adds Encer to the Marketing & SEO section. Encer builds interactive link-in-bio pages for creators with polls, messages, giveaways, live updates, and privacy-aware analytics.

Affiliation disclosure: I am acting on behalf of the Encer team.

Checklist

• Searched for duplicates before submitting
• Used the table format: | [**Tool Name**](link) | Description. |
• Description is short, starts with a verb (no articles), ends with a period
• Added below existing entries in the category
• Checked spelling and grammar

[greptile-apps]

Greptile Summary

This PR adds Encer to the README's Marketing & SEO section. The main change is:

• A new table row for Encer with its website link and short product description.

Confidence Score: 5/5

This looks safe to merge.

No blocking issues found in the changed code.

T-Rex Logs

What T-Rex did

• T-Rex ran the Encer validation script to perform the general contract validation.
• T-Rex reviewed the Encer checklist log and confirmed the Encer addition, a duplicate count of 1, parsed link/description, all required assertions passing, and an HTTP 200 response.
• T-Rex attempted Markdownlint validation, but Markdownlint was not found on PATH and the run exited with code 127.

_{Ran code and verified through T-Rex}

Important Files Changed

Filename	Overview
README.md	Adds a documentation-only Marketing & SEO table entry for Encer.

_{Reviews (1): Last reviewed commit: "Add Encer to Marketing & SEO" | Re-trigger Greptile}