Update rules/Proj0043.md

Co-authored-by: Laura Kramer <[email protected]>

Author: CptWesley

rules/Proj0043.md

@@ -5,7 +5,7 @@ ancestor: MSBuild
 
 # Proj0043: Enable <RestoreLockedMode> when <ContinuousIntegrationBuild> is enabled
 In order to ensure `dotnet restore` is not allowed to implicitly upgrade package versions that are
-specified in the [lock file](https://devblogs.microsoft.com/dotnet/enable-repeatable-package-restores-using-a-lock-file/). It is necessary to enable "locked mode".
+specified in the [lock file](https://devblogs.microsoft.com/dotnet/enable-repeatable-package-restores-using-a-lock-file/), it is necessary to enable "locked mode".
 The [recommended way](https://devblogs.microsoft.com/dotnet/enable-repeatable-package-restores-using-a-lock-file/)
 of enabling locked mode is to conditionally set the `RestoreLockedMode` property to `true`,
 if the `ContinuousIntegrationBuild` is set to `true`. This is under the assumption that