Update trusty.md

Author: nrios14

user/enterprise/trusty.md

@@ -12,9 +12,9 @@ layout: en_enterprise
 
 **Worker Requirements**:
 
-We recommend using a machine with 8 vCPUs and 15 GB of memory and at least 40 GB of disk space. If you're using AWS, this will be their c4.2xlarge instance type. Also, you'll want to run Ubuntu 16.04 or later. Port 22 must be open for SSH during installation and operation.
+We recommend using a machine with 8 vCPUs and 15 GB of memory, and at least 40 GB of disk space. If you're using AWS, this will be their c4.2xlarge instance type. Also, you'll want to run Ubuntu 16.04 or later. Port 22 must be open for SSH during installation and operation.
 
-> _Precise build containers and Trusty build containers must be on different instances_. To run both Precise and Trusty builds, at least two worker instances are required.
+> _Precise build containers and Trusty build containers must be on different instances_. To run Precise and Trusty builds, at least two worker instances are required.
 
 ## Install with Travis CI Enterprise 2.2 and higher
 
@@ -33,7 +33,7 @@ This installer uses Docker's `aufs` storage driver. If you have any questions or
 
 ## Install with Travis CI Enterprise 2.1.9 and higher
 
-The Travis CI Enterprise 2.1 series has the [Precise [Legacy]](/user/enterprise/precise/) as it's default worker. However, starting with version 2.1.9+, it is possible to use Trusty build environments, assuming the feature flags are set. Otherwise, the installation process is very similar to the Enterprise 2.2 series.
+The Travis CI Enterprise 2.1 series has the [Precise [Legacy]](/user/enterprise/precise/) as its default worker. However, starting with version 2.1.9+, it is possible to use Trusty build environments, assuming the feature flags are set. Otherwise, the installation process is very similar to the Enterprise 2.2 series.
 
 ### Enable the Trusty Beta Feature Flag