Add emacs-jieba-rs link to README

[brsvh]

Yet another link.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.47%. Comparing base (dea99d2) to head (fb9cc53).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #156   +/-   ##
=======================================
  Coverage   83.47%   83.47%           
=======================================
  Files          10       10           
  Lines        2063     2063           
=======================================
  Hits         1722     1722           
  Misses        341      341           

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[codspeed-hq]

Merging this PR will not alter performance

✅ 13 untouched benchmarks

---

_{Comparing brsvh:main (fb9cc53) with main (dea99d2)}