use msdocs alert format

deanbot · deanbot · commit 191dfe22417d · 2020-03-25T11:03:13.000-05:00
diff --git a/docs/spfx/use-theme-colors-in-your-customizations.md b/docs/spfx/use-theme-colors-in-your-customizations.md
@@ -101,7 +101,8 @@ In the context of modern SharePoint sites, the values associated with theme toke
 
 The following theme tokens are available for you to use:
 
-_Note: default values below correspond to the defaults on a modern team site when using the **red palette**._
+[!NOTE]
+Default values below correspond to the defaults on a modern team site when using the **red palette**.
 
 | Token                  | Default                  | Remarks                                                                                                                                                                                                                                                                                                                                                                                                                             |
 | ---------------------- | ------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
