Change back to 'pipable'

Nevermind, Merriam Webster recognizes [pipable](https://www.merriam-webster.com/dictionary/pipable), but not [pipeable](https://www.merriam-webster.com/dictionary/pipeable).  Despite 'pipeable' being in [r4ds](http://r4ds.had.co.nz/functions.html#writing-pipeable-functions).
diff --git a/README.md b/README.md
index 12aac8d..bade4ff 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@
 ***
 
 ## Features
-### Pipeable syntax
+### Pipable syntax
 `kableExtra` is NOT a table generating package. It is a package that can **"add features"** to a `kable()` output using a syntax that every useR loves - the [pipes `%>%`](http://r4ds.had.co.nz/pipes.html). We see similar approaches to deal with plots in packages like `ggvis` and `plotly`. There is no reason why we cannot use it with tables.
 
 ### Unified functions for both HTML and PDF