Fix typo and formatting in --prometheus documentation

README.turnserver

@@ -281,8 +281,9 @@ Flags:
 			check: across the session, all requests must have the same
 			main ORIGIN attribute value (if the ORIGIN was
 			initially used by the session).
- --prometheus		Enable prometheus metrics. By default it is
-			disabled. Would listen on port 9641 unther the path /metrics
+
+--prometheus		Enable prometheus metrics. By default it is
+			disabled. Would listen on port 9641 under the path /metrics
 			also the path / on this port can be used as a health check
 
 -h			Help.

man/man1/turnserver.1

@@ -422,12 +422,11 @@ The flag that sets the origin consistency
 check: across the session, all requests must have the same
 main ORIGIN attribute value (if the ORIGIN was
 initially used by the session).
-.RS
 .TP
 .B
 \fB\-\-prometheus\fP
 Enable prometheus metrics. By default it is
-disabled. Would listen on port 9641 unther the path /metrics
+disabled. Would listen on port 9641 under the path /metrics
 also the path / on this port can be used as a health check
 .RE
 .TP

src/apps/relay/mainrelay.c

@@ -557,7 +557,7 @@ static char Usage[] = "Usage: turnserver [options]\n"
 "						The connection string has the same parameters as redis-userdb connection string.\n"
 #endif
 #if !defined(TURN_NO_PROMETHEUS)
-" --prometheus					Enable prometheus metrics. It is disabled by default. If it is enabled it will listen on port 9641 unther the path /metrics\n"
+" --prometheus					Enable prometheus metrics. It is disabled by default. If it is enabled it will listen on port 9641 under the path /metrics\n"
 "						also the path / on this port can be used as a health check\n"
 #endif
 " --use-auth-secret				TURN REST API flag.\n"