docs(): fix code snippet (mongo)

kamilmysliwiec · kamilmysliwiec · commit 8e2c7fb985cb · 2020-11-06T11:20:38.000+01:00
diff --git a/content/techniques/mongo.md b/content/techniques/mongo.md
@@ -251,6 +251,7 @@ To inject a given `Connection` to a custom provider (for example, factory provid
   },
   inject: [getConnectionToken('cats')],
 }
+```
 
 #### Hooks (middleware)
 

Original file line number	Diff line number	Diff line change
@@ -251,6 +251,7 @@ To inject a given `Connection` to a custom provider (for example, factory provid
`251`	`251`	`},`
`252`	`252`	`inject: [getConnectionToken('cats')],`
`253`	`253`	`}`
	`254`	+```
`254`	`255`
`255`	`256`	`#### Hooks (middleware)`
`256`	`257`