Update VSTestIntegration.md (#778)

Update VSTestIntegration.md

Author: MarcoRossignoli

Documentation/VSTestIntegration.md

@@ -116,7 +116,7 @@ Take a look at our [`HelloWorld`](Examples/VSTest/HelloWorld/HowTo.md) sample.
 ## How it works
 
 Coverlet integration is implemented with the help of [datacollectors](https://github.com/Microsoft/vstest-docs/blob/master/docs/extensions/datacollector.md).  
-When we specify `--collect:"XPlat Code Coverage"` vstest platform tries to load coverlet collectors present inside `coverlet.collector.dll`
+When we specify `--collect:"XPlat Code Coverage"` vstest platform tries to load coverlet collectors inside `coverlet.collector.dll`
 
 1. Outproc Datacollector : The outproc collector run in a separate process(datacollector.exe/datacollector.dll) than the process in which tests are being executed(testhost*.exe/testhost.dll). This datacollector is responsible for calling into coverlet APIs for instrumenting dlls, collecting coverage results and sending the coverage output file back to test platform.