CRAN checks

The Description field is intended to be a (one paragraph) description of what the package does and why it may be useful. Please add more details about the package functionality and implemented methods in your Description text.
Please write TRUE and FALSE instead of T and F.'T' and 'F' instead of TRUE and FALSE
Please ensure that you do not use more than 2 cores in your examples, vignettes, etc. e.g.: R/rrepest_core.R