Add authors and new pkg installation

DESCRIPTION

@@ -1,9 +1,12 @@
 Package: treepplr
 Title: R Interface to TreePPL
 Version: 0.15.0
-Authors@R: 
+Authors@R: c(
     person("Mariana", "P Braga", , "mpiresbr@gmail.com", role = c("aut", "cre"),
-           comment = c(ORCID = "0000-0002-1253-2536"))
+           comment = c(ORCID = "0000-0002-1253-2536")),
+    person("Tim", "Virgoulay", role = "aut"),
+    person("Stenio", "Foerster", role = "aut")
+  )
 Description: This package in an interface for using TreePPL programs.
 License: MIT + file LICENSE
 Encoding: UTF-8
@@ -17,6 +20,7 @@ Imports:
     assertthat,
     digest,
     future,
+    future.apply,
     methods,
     jsonlite,
     tidytree,

README.md

@@ -18,14 +18,14 @@ and basic examples of running various models under [Articles](https://treeppl.or
 You can install treepplr like so:
 
 ``` r
-if(!require("devtools", quietly = TRUE)) {
-  install.packages("devtools")
-  library(devtools)
+if(!require("pak", quietly = TRUE)) {
+  install.packages("pak")
+  library(pak)
 } else {
- library(devtools)
+ library(pak)
 }
 
-devtools::install_github("treeppl/treepplr")
+pak::pak("treeppl/treepplr")
 ```
 
 This will only install the R package. The TreePPL compiler will not be downloaded and installed until you run your first analysis, and the TreePPL compiler is called.  During the download, you will see a message like this