Update README.md

README.md

@@ -88,7 +88,7 @@ the syntax with just ```Space``` key.
 When you open file, which you used to edit, vim will open it in the exact
 same line.
 #### Vertical ruler
-There are a vertical line indicating 80 character limit, it can be seen it on
+There is a vertical line indicating 80 character limit, it can be seen on
 the screenshrot above.
 #### Smart search
 Vim built-in search ignores case by default, but if you use mixed