causact 0.3.2

Minor improvements and fixes

• dag_render() displayed weird DAGs when users have dplyr (>=v1.0) installed. Isolated problem to changes in dplyr::group_indices() and dplyr::bind_cols that caused a jumbling of node id's.
• Updated README.md to display images and give CRAN install instructions.

causact 0.3.1

• Initial release for CRAN
• Biggest change from previous development versions is that dag_greta() now returns a dataframe as opposed to creating variables in your global environment.