#482: add what's new in the menu

[lidaobing]

/closes #482

[codecov]

Codecov Report

Merging #484 (6eb9cff) into master (96302de) will decrease coverage by 0.00%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master     #484      +/-   ##
==========================================
- Coverage   44.50%   44.49%   -0.01%     
==========================================
  Files          67       67              
  Lines        7719     7722       +3     
==========================================
+ Hits         3435     3436       +1     
- Misses       4284     4286       +2     

Impacted Files	Coverage Δ
src/iptux/Application.cpp	42.50% <33.33%> (-0.14%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 96302de...6eb9cff. Read the comment docs.