added documentation for trasnport parameter

config.yml.example

@@ -138,6 +138,7 @@ reports:
 #    params:
 #      host: 127.0.0.1
 #      port: 514
+#      transport: udp
 #      templates: # See here how to write a template https://github.com/nttgin/BGPalerter/blob/master/docs/context.md
 #        default: "++BGPalerter-3-${type}: ${summary}|${earliest}|${latest}"
 #        hijack: "++BGPalerter-5-${type}: ${summary}|${prefix}|${description}|${asn}|${newprefix}|${neworigin}|${earliest}|${latest}|${peers}"

docs/configuration.md

@@ -377,6 +377,7 @@ Parameters for this report module:
 |showPaths| Amount of AS_PATHs to report in the alert (0 to disable). | 
 |host| Host of the Syslog server (e.g. localhost).| 
 |port| Port of the Syslog server  (e.g. 514).| 
+|transport| The transport protocol to use. Two options: `udp` or `tcp`| 
 |templates| A dictionary containing string templates for each BGPalerter channels. If a channel doesn't have a template defined, the `default` template will be used (see `config.yml.example` for more details). |
 
 #### reportAlerta