Fix typo

Author: lschlesinger-dn

README.md

@@ -27,5 +27,5 @@ The output of each extension is:
 1. Copy the .so files into `/usr/lib/x86_64-linux-gnu/xtables`
 2. `insmod` the .ko files
 
-# But Lahav Senapi, how do I write a new extension myself?
+# But Lahav Senpai, how do I write a new extension myself?
 Check the `help/` directory. `help/Netfilter_Modules.pdf` is a pretty good one.