Update NEWS.md

Merge pull request #210 from pedro-andrade-inpe/master

Small updates for 1.5-4

Merge pull request #204 from pedro-andrade-inpe/master

Small updates to 1.5-0

Merge pull request #187 from pedro-andrade-inpe/master

Updates for 1.4-0

remove docs. Switch to pkgdown github actions

Merge pull request #187 from pedro-andrade-inpe/master

Updates for 1.4-0

Merge pull request #187 from pedro-andrade-inpe/master

Updates for 1.4-0

Merge pull request #102 from pedro-andrade-inpe/master

More updates related to CRAN submission

added Travis shield