corrected link typo from my previous PR

corrected link typo from my previous PR 

thank you!

README.md

@@ -43,7 +43,7 @@ the URL of our original repository from GitHub or Figshare, etc.
 
 - For the RStudio environment, we must add the following at the end of the URL: `?urlpath=rstudio`
 
-  - Example: http://mybinder.org/badge_logo.svg)](http://mybinder.org/v2/gh/binder-examples/r/master?urlpath=rstudio
+  - Example: http://mybinder.org/v2/gh/binder-examples/r/master?urlpath=rstudio
 
 - For the Shiny app environment, we must add the following at the end of the URL: `?urlpath=shiny`. In this case, we 
 also have to note that if the Shiny app files are located in a folder, this folder should be specified in the URL,