still trying to fix winbuilder warning

Author: zachary-foster

README.Rmd

@@ -1,12 +1,23 @@
 ---
-output: md_document
+output: github_document
 ---
 
+<!-- README.md is generated from README.Rmd. Please edit that file -->
+
+```{r, echo = FALSE}
+knitr::opts_chunk$set(
+  collapse = TRUE,
+  comment = "#>",
+  fig.path = "man/figures/README-"
+)
+```
+
 [![Build Status](https://travis-ci.org/grunwaldlab/metacoder.png?branch=master)](https://travis-ci.org/grunwaldlab/metacoder?branch=master) [![codecov.io](https://codecov.io/github/grunwaldlab/metacoder/coverage.svg?branch=master)](https://codecov.io/github/grunwaldlab/metacoder?branch=master)
 [![Downloads from Rstudio mirror per month](http://cranlogs.r-pkg.org/badges/metacoder)](http://www.r-pkg.org/pkg/metacoder)
 [![Downloads from Rstudio mirror](http://cranlogs.r-pkg.org/badges/grand-total/metacoder)](http://www.r-pkg.org/pkg/metacoder)
 [![CRAN version](http://www.r-pkg.org/badges/version/metacoder)](https://cran.r-project.org/package=metacoder)
 
+![](man/figures/readme_figure.png)
 
 An R package for metabarcoding research planning and analysis
 -------------------------------------------------------------

README.md

@@ -15,7 +15,8 @@ set.seed(1)
 # Knitr
 library(knitr)
 library(grid)
-opts_chunk$set(dev = 'png', fig.width = 7, fig.height = 7, warning = TRUE, message = TRUE)
+opts_chunk$set(dev = 'png', fig.width = 7, fig.height = 7, warning = TRUE,
+               message = TRUE)
 ```
 
 ## Documentation