Updated The network request logger (markdown)

The-network-request-logger.md

@@ -10,6 +10,8 @@ The request logger will open in a new tab:
 
 ### Components
 
+#### Dropdown tab selector
+
 The drop-down selector is to choose for which tab network requests should be logged. Each network request logger can log only one tab at a time, in order to identify clearly all the network requests which originate from a specific web page.
 
 You may have multiple network request loggers open at the same time though -- there is no limit.