diff --git a/README.md b/README.md
index 3814f1c3b7683949305111ab63690279540fe164..eac541e7413eb41f9af941c61eb0eb95ddfac6b1 100644
--- a/README.md
+++ b/README.md
@@ -5,10 +5,10 @@ An enhanced [ALTO](http://www.loc.gov/standards/alto/)-viewer for Quality Assura
 ## Features
 
  * Smooth zoom & pan of large images thanks to OpenSeadragon
- * Marking of blown highlights & lowlights by colored overlays (toggable)
- * TextBlock marking by boxes (toggable)
+ * Marking of blown highlights & lowlights by colored overlays (toggleable)
+ * TextBlock marking by boxes (toggleable)
  * Interactive inspection of OCR (hover the mouse over a TextBlock)
- * Grid lines for checking skewing and rotation (toggable)
+ * Grid lines for checking skewing and rotation (toggleable)
  * Folder overview with thumbnails
  * Histogram, optionally not analyzing the edges of the image