update URLs 

Merge pull request #1507 from rstudio/cran-1.4.0 CRAN release v1.4.0

Merge pull request #1494 from rstudio/cran/1.3.0 CRAN Release v1.3.0

Merge pull request #1470 from rstudio/cran-1.2.0 CRAN release v1.2.0

rebuild site 

Rbuildignore tools 

update NEWS 

`force=TRUE` when unlinking temp dir detritus 

Merge pull request #1403 from rstudio/cran-v3-0.1.0 CRAN Release keras3 v0.1.0

Increment version to 2.13.0