[Whisper post] Add anchor back to backpressure article

dhl · dhl · commit 78b7ee3c3397 · 2018-08-08T13:02:07.000+08:00
diff --git a/_posts/2018-08-08-decentralized-application-messaging-with-whisper.md b/_posts/2018-08-08-decentralized-application-messaging-with-whisper.md
@@ -286,4 +286,4 @@ worth looking at for decentralized applications.
 4. Bloom Filter.
 [https://en.wikipedia.org/wiki/Bloom_filter](https://en.wikipedia.org/wiki/Bloom_filter)
 5. Backpressure.
-[https://en.wikipedia.org/wiki/Back_pressure](https://en.wikipedia.org/wiki/Back_pressure)
+[https://en.wikipedia.org/wiki/Back_pressure#Backpressure_in_information_technology](https://en.wikipedia.org/wiki/Back_pressure#Backpressure_in_information_technology)
