update readme

README.md

@@ -1,2 +1,22 @@
 # WKBIOPTIM4
 Fourth Workshop on Optimization of Biological Sampling
+
+## Installation
+
+You can install `BIOPTIMtools` by running this code in `R`:
+
+``` r
+# (only required if devtools is not already installed)
+install.packages("devtools")
+
+# Install BIOPTIMtools
+devtools::install_github("ices-eg/WKBIOPTIM4")
+```
+
+## Example
+
+``` r
+library(BIOPTIMtools)
+
+
+```