Merge pull request #99 from dandv/patch-1

Typo fix

Author: adamschwartz

docs/2-Examples/2-projects_using_tether.md

@@ -22,7 +22,7 @@ A simple, easy-to-use implementation of tooltips that works well.
 Where Tether does general-purpose positioning, Drop assumes that you are interested
 in making something which pops up next to something the user clicks or hovers on.
 
-If your building something that fits that pattern, Drop can make things a little easier.
+If you're building something that fits that pattern, Drop can make things a little easier.
 
 ### Your Project Here