Fix indentation and code formatting

Author: drewnoakes

docs/msbuild/how-to-ignore-errors-in-tasks.md

@@ -24,15 +24,17 @@ The `ContinueOnError` attribute can contain one of the following values:
 
 - **ErrorAndStop** or **false** (default). When a task fails, the remaining tasks in the `Target` element and the build aren't executed, and the entire `Target` element and the build is considered to have failed.
 
-  Versions of the .NET Framework before 4.5 supported only the `true` and `false` values.
+Versions of the .NET Framework before 4.5 supported only the `true` and `false` values.
 
-  The default value of `ContinueOnError` is `ErrorAndStop`. If you set the attribute to `ErrorAndStop`, you make the behavior explicit to anyone who reads the project file.
+The default value of `ContinueOnError` is `ErrorAndStop`. If you set the attribute to `ErrorAndStop`, you make the behavior explicit to anyone who reads the project file.
 
 #### To ignore an error in a task
 
-- Use the `ContinueOnError` attribute of the task. For example:
+Use the `ContinueOnError` attribute of the task. For example:
 
-    `<Delete Files="@(Files)" ContinueOnError="WarnAndContinue"/>`
+```c#
+<Delete Files="@(Files)" ContinueOnError="WarnAndContinue"/>
+```
 
 ## Example
 The following code example illustrates that the `Build` target still runs and the build is considered a success, even if the `Delete` task fails.