chg: [doc] not only pgsql10

Author: gallypette

README.md

@@ -4,7 +4,7 @@ analyzer-d4-passivessl fetch a redis feed of certificate and TLS sessions and ma
 ```bash
 go get github.com/gomodule/redigo/redis
 go get github.com/lib/pq
-sudo apt install postgresql-plpython3-10
+sudo apt install postgresql-plpython3-[your psql version]
 ```
 
 # Config