Update docs/developing_in_force.md

Co-Authored-By: Steven Hicks <steven.j.hicks@gmail.com>

docs/developing_in_force.md

@@ -1,6 +1,6 @@
 # Developing in force
 
-Often in development you'll to link the development version of reaction into force.
+Often in development you'll want to link the development version of reaction into force.
 Traditionally one would use `yarn link` in reaction and `yarn link @artsy/reaction` in a service like force
 to acheive this. Unfortunately, this mechanism is prone to a lot of issues. Below is a guide for a smoother
 linking experience.