update news

Author: malcolmbarrett

NEWS.md

@@ -1,5 +1,8 @@
 # partition (development version)
 
+* Required ggplot2 version 3.3.0 or higher due to a bug fix related to stacked area charts 
+* Added ggcorplot to `Suggests` for use in the vignette
+* Revamped the intro vignettes to be clearer and with better examples using the Baxter data.
 * Added microbiome data from [https://doi.org/10.1186/s13073-016-0290-3](https://doi.org/10.1186/s13073-016-0290-3) as 5 exported data sets: `baxter_clinical`, `baxter_otu`, `baxter_family`, `baxter_genus`, and `baxter_data_dictionary` (#16)
 * fixed partial match warning in `measure_min_icc()` (b382caae)
 * added an issue template