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Fix typo and bold styling for selected item

Author: AnnaMHuff

articles/container-apps/java-metrics.md

@@ -54,7 +54,7 @@ Once you select the Java development stack, the *Customize Java features for you
 
 1. In the *Overview* section, under *Essentials*, find *Development stack* and select **manage**.
 
-1. In the *Development stack* drown down, select *Java*.
+1. In the *Development stack* drop down, select **Java**.
 
 1. Select **Apply**.