Updated introduction

Added introduction and made minor text fixes

Author: Jceciliani

docs/ContinuousIntegration.md

@@ -17,11 +17,11 @@
 
 ## Introduction
 
-FIXME: FILL ME IN!
+This page is designed to assist in the understanding of proper practices for testing for the Swift project. 
 
 ## Pull Request Testing
 
-In order for the Swift project to be able to advance quickly, it is important that we maintain a green build [[1]](#footnote-1). In order to help maintain this green build, the Swift project heavily uses pull request (PR) testing. Specifically, an important general rule is that **all** non-trivial checkins to any Swift Project repository should should at least perform a [smoke test](#smoke-testing) if simulators will not be impacted *or* a full [validation test](#validation-testing) if simulators may be impacted. If in addition one is attempting to make a source breaking change across multiple repositories one should follow the cross repo source breaking changes workflow. We now continue by describing the Swift system for Pull Request testing, @swift-ci:
+In order for the Swift project to be able to advance quickly, it is important that we maintain a green build [[1]](#footnote-1). In order to help maintain this green build, the Swift project heavily uses pull request (PR) testing. Specifically, an important general rule is that **all** non-trivial checkins to any Swift Project repository should at least perform a [smoke test](#smoke-testing) if simulators will not be impacted *or* a full [validation test](#validation-testing) if simulators may be impacted. If in addition one is attempting to make a source breaking change across multiple repositories, one should follow the cross repo source breaking changes workflow. We now continue by describing the Swift system for Pull Request testing, @swift-ci:
 
 ### @swift-ci
 
@@ -102,7 +102,7 @@ With that being said, a validation test on macOS does the following:
 1. Removes the workspace.
 2. Builds the compiler.
 3. Builds the standard library for macOS and the simulators for all platforms.
-4. lldb is /not/ build/tested [[2]](#footnote-2)
+4. lldb is /not/ built/tested [[2]](#footnote-2)
 5. The tests, validation-tests are run for all simulators and macOS both with
    and without optimizations enabled.