Fix introspection port in troubleshooting docs
The port in the default value of `INTROSPECTION_BIND_ADDRESS` is 61679, not 61678 (which is the metrics port).
@@ -82,7 +82,7 @@ ipamd.log.2018-05-16-01 ipamd.log.2018-05-16-06 ipamd.log.2018-05-16-11 ipamd
```
// get enis info
-[root@ip-192-168-188-7 bin]# curl http://localhost:61678/v1/enis | python -m json.tool
+[root@ip-192-168-188-7 bin]# curl http://localhost:61679/v1/enis | python -m json.tool
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2589 0 2589 0 0 2589 0 --:--:-- --:--:-- --:--:-- 505k
@@ -137,7 +137,7 @@ ipamd.log.2018-05-16-01 ipamd.log.2018-05-16-06 ipamd.log.2018-05-16-11 ipamd
```
// get IP assignment info
-[root@ip-192-168-188-7 bin]# curl http://localhost:61678/v1/pods | python -m json.tool
+[root@ip-192-168-188-7 bin]# curl http://localhost:61679/v1/pods | python -m json.tool
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 6688 0 6688 0 0 6688 0 --:--:-- --:--:-- --:--:-- 1306k
