Update focal.md

user/enterprise/focal.md

@@ -13,13 +13,13 @@ Please be sure to [install TCIE 3.x](/user/enterprise/tcie-3.x-setting-up-travis
 
 **Worker Requirements**:
 
-We recommend using a **compute optimized** machine with 8 vCPUs and ~16 GB of memory and at least 60 GB of disk space. Also, you'll want to run Ubuntu 20.04 or later. Port 22 must be open for SSH during installation and operation.
+We recommend using a **compute optimized** machine with 8 vCPUs and ~16 GB of memory, and at least 60 GB of disk space. Also, you'll want to run Ubuntu 20.04 or later. Port 22 must be open for SSH during installation and operation.
 
-> A single worker machine can only be used together with one build environment. If you would like to setup additional build environments (such as Xenial or Focal), please provision an additional machine.
+> A single-worker machine can only be used together with one build environment. If you would like to set up additional build environments (such as Xenial or Focal), please provide an additional machine.
 
 ## Third-party apt repositories and services disabled by default
 
-[Third party apt-repositories are removed](https://docs.travis-ci.com/user/reference/focal/#third-party-apt-repositories-removed) to help reduce risk of unrelated interference and allow for faster apt-get updates.
+[Third-party apt-repositories are removed](https://docs.travis-ci.com/user/reference/focal/#third-party-apt-repositories-removed) to help reduce risk of unrelated interference and allow for faster apt-get updates.
 
 [Services disabled by default](https://docs.travis-ci.com/user/reference/focal/#services-disabled-by-default) to speed up boot time and improve performance.