Fix an URL change

README.md instead of README

Author: Framartin

week2/003organizingADataAnalysis/index.Rmd

@@ -121,7 +121,7 @@ knit_hooks$set(plot = knitr:::hook_plot_html)
 
 * Not necessary if you use R markdown
 * Should contain step-by-step instructions for analysis
-* Here is an example [https://github.com/jtleek/swfdr/blob/master/README](https://github.com/jtleek/swfdr/blob/master/README)
+* Here is an example [https://github.com/jtleek/swfdr/blob/master/README.md](https://github.com/jtleek/swfdr/blob/master/README.md)
 
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