Editor pass - Added MQO definition (#5667)

Editor pass for: 
- https://github.com/fleetdm/fleet/pull/5644

handbook/growth.md

@@ -9,7 +9,7 @@ Effective market positioning is crucial to the growth of any software product. F
 
 ## Marketing Qualified Opportunities (MQOs)
 
-Growth's goal is to increase usage of the product. We value users of all sizes adopting Fleet Free or Fleet Premium. Companies purchasing under 100 device licenses should sign up [self service](https://fleetdm.com/pricing/). Companies who would enroll more than 100 devices should [schedule a demo](https://fleetdm.com/). When these companies attend a demo Fleet considers them marketing qualified opportunities (MQOs).
+Growth's goal is to increase usage of the product. We value users of all sizes adopting Fleet Free or Fleet Premium. Companies purchasing under 100 device licenses should sign up [self-service](https://fleetdm.com/pricing/). Companies that enroll more than 100 devices should [schedule a demo](https://fleetdm.com/). When these companies attend a demo, Fleet considers them marketing qualified opportunities (MQOs).
 
 ## Lead enrichment
 
@@ -17,7 +17,7 @@ Fleet's lead enrichment process can be found in this [Google Doc](https://docs.g
 
 ## Outreach one-pager
 
-Our one-pager offers a summary of what Fleet does; it will used for sales outreach. It can also help stakeholders become familiar with the company and product. Fleet's outreach one-pager can be found in this [Google Doc](https://drive.google.com/file/d/1o0gHCVonNbjjsk8iI-mgVw5O-o-AhJ5t/view?usp=sharing).
+Our one-pager offers a summary of what Fleet does. It can help stakeholders become familiar with the company and product while also being a useful tool the Growth team uses for sales outreach. Find Fleet's outreach one-pager in this [Google Doc](https://drive.google.com/file/d/1o0gHCVonNbjjsk8iI-mgVw5O-o-AhJ5t/view?usp=sharing).
 
 ## Posting on social media as Fleet