Update README with rule G108

Signed-off-by: Cosmin Cojocar <[email protected]>

Author: ccojocar

README.md

@@ -69,6 +69,7 @@ directory you can supply './...' as the input argument.
 - G104: Audit errors not checked
 - G106: Audit the use of ssh.InsecureIgnoreHostKey
 - G107: Url provided to HTTP request as taint input
+- G108: Profiling endpoint automatically exposed on /debug/pprof
 - G201: SQL query construction using format string
 - G202: SQL query construction using string concatenation
 - G203: Use of unescaped data in HTML templates