Add Xcode 10.0 Docs.

Author: marcomorain

jekyll/_cci2/testing-ios.md

@@ -22,12 +22,13 @@ CircleCI offers support for building and testing iOS and macOS projects. Refer t
 
 The currently available Xcode versions are:
 
+* `10.0.0`: Xcode 10.0 (Build 10L221o) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-440/index.html)
 * `9.4.1`: Xcode 9.4.1 (Build 9F2000) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-430/index.html)
 * `9.4.0`: Xcode 9.4 (Build 9F1027a) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-422/index.html)
 * `9.3.1`: Xcode 9.3.1 (Build 9E501) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-419/index.html)
 * `9.3.0`: Xcode 9.3 (Build 9E145) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-405/index.html)
 * `9.2.0`: Xcode 9.2.0 (Build 9C40b) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-298/index.html)
-* `9.1.0`: Xcode 9.1.0 (Build 9B55)  [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-290/index.html)
+* `9.1.0`: Xcode 9.1.0 (Build 9B55) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-290/index.html)
 * `9.0.1`: Xcode 9.0.1 (Build 9A1004) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-282/index.html)
 * `8.3.3`: Xcode 8.3.3 (Build 8E3004b) [installed software](https://circle-macos-docs.s3.amazonaws.com/image-manifest/build-146/index.html)