format mongoDB.md

Signed-off-by: 高强 <wb-gq555900@alibaba-inc.com>
kedacore · Jan 9, 2021 · bc28372 · bc28372
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diff --git a/content/docs/2.1/scalers/mongo.md b/content/docs/2.1/scalers/mongo.md
@@ -33,9 +33,11 @@ triggers:
 - `queryValue` - a threshold that is used as targetAverageValue in HPA.
 
 To provide information about how to connect to mongoDB you can provide
+
 - `connectionStringFromEnv` - mongoDB connection string that should point to environment variable with valid value
 
 Or provide more detailed information:
+
 - `host` - The host of the mongoDB server
 - `port` - The port of the mongoDB server
 - `username` - Username to authenticate with to mongoDB database