Fix signal table in README

README.md

@@ -83,17 +83,12 @@ Hello World
 
 On Unix systems, the NATS server responds to the following signals:
 
-+---------+---------------------------------------+
 | Signal  | Result                                |
-+---------+---------------------------------------+
+| ------- | --------------------------------------|
 | SIGKILL | Kills the process immediately         |
-+---------+---------------------------------------+
 | SIGINT  | Stops the server gracefully           |
-+---------+---------------------------------------+
 | SIGUSR1 | Reopens the log file for log rotation |
-+---------+---------------------------------------+
 | SIGHUP  | Reloads server configuration file     |
-+---------+---------------------------------------+
 
 The `gnatsd` binary can be used to send these signals to running NATS servers using the `-sl` flag: