Correct fomrat

README.md

@@ -132,7 +132,7 @@ Nethogs monitors traffic going to/from a machine, per process. Other tools rathe
 * [flowtop](http://netsniff-ng.org/) is a top-like netfilter connection tracking tool. 
 * [BusyTasks](https://www.pling.com/p/1201835) is a Java-based app using top, iotop and nethogs as backend.
 * [bandwhich](https://github.com/imsnif/bandwhich) is a terminal bandwidth utilization tool.
-* [sniffer][https://github.com/chenjiandongx/sniffer] is a modern alternative network traffic sniffer.
+* [sniffer](https://github.com/chenjiandongx/sniffer) is a modern alternative network traffic sniffer.
 
 License
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