Update setup.md

Closes #15

Author: hshimon

learners/setup.md

@@ -2,53 +2,33 @@
 title: Setup
 ---
 
-FIXME: Setup instructions live in this document. Please specify the tools and
-the data sets the Learner needs to have installed.
-
-## Data Sets
-
-<!--
-FIXME: place any data you want learners to use in `episodes/data` and then use
-       a relative link ( [data zip file](data/lesson-data.zip) ) to provide a
-       link to it, replacing the example.com link.
--->
-Download the [data zip file](https://example.com/FIXME) and unzip it to your Desktop
-
-## Software Setup
-
-::::::::::::::::::::::::::::::::::::::: discussion
-
-### Details
-
-Setup for different systems can be presented in dropdown menus via a `spoiler`
-tag. They will join to this discussion block, so you can give a general overview
-of the software used in this lesson here and fill out the individual operating
-systems (and potentially add more, e.g. online setup) in the solutions blocks.
-
-:::::::::::::::::::::::::::::::::::::::::::::::::::
-
-:::::::::::::::: spoiler
-
-### Windows
-
-Use PuTTY
-
-::::::::::::::::::::::::
-
-:::::::::::::::: spoiler
-
-### MacOS
-
-Use Terminal.app
-
-::::::::::::::::::::::::
-
-
-:::::::::::::::: spoiler
-
-### Linux
-
-Use Terminal
-
-::::::::::::::::::::::::
-
+## Install R and RStudio
+  * Use the following to find installation instructions under “Preparations”: [https://datacarpentry.github.io/R-ecology-lesson/index.html#preparations](https://datacarpentry.github.io/R-ecology-lesson/index.html#preparations)  
+      
+* Follow the instructions to install the "tidyverse" and "ratdat" packages:  
+  * In the RStudio Console enter: 
+  install.packages("tidyverse")
+  install.packages("ratdat")
+
+* If you see a question about “binary versions available…do you want to install from sources the package…” **SAY NO**  
+* Once a package has been installed, you don’t need to install it again until there is an update  
+* If you get an error message about needing RTools, you can find that here: [https://cran.r-project.org/bin/windows/Rtools/](https://cran.r-project.org/bin/windows/Rtools/)  
+  * Download and install the version that aligns with the R version that you currently have  
+  * Once installed, you might need to restart your R session
+    
+* DO NOT download the dataset
+
+## Git installation 
+
+### **Windows**: install the Bash Shell with Git  
+    * Download the Git for Windows [installer](https://gitforwindows.org/) and run it keeping all the defaults.  
+    * **Additional step**    
+      * In RStudio, open the Terminal tab  
+      * Copy and paste: setx HOME "%USERPROFILE%"  
+      * Press Enter, you should see: "SUCCESS: Specified value was saved"  
+      * Restart your R session  
+      
+ ### **Mac**   
+    * Open the Terminal app from Applications (it is sometimes under a folder called "Other" or "Utilities"), type `git --version` and press Enter/Return 
+    * If it's not installed already, follow the instructions to Install the "command line developer tools"  
+    * Do not click "Get Xcode" because that will take too long and is not necessary for this workshop