Merge pull request kingToolbox#917 from dnlchen/master should be tag 2.4.0
Add the download url of v2.5.0 Prerelease 1
Update features of v2.4 and roadmap of v2.5
Add the download url of v2.4.0 Prerelease 1
Update features of v2.3 and roadmap of v2.4
Update features of v2.2 and roadmap of v2.3
Add a 1024x1024 WindTerm icon.
A smart memory pointer.