add note about tomcat parameter

inspectit-ocelot-documentation/docs/tags/tags-exporters.md

@@ -23,8 +23,10 @@ The Tags HTTP exporter does not provide any encryption of data and does not perf
 Thus, this server should not be exposed directly to the public in a production environment.
 It is recommended to set up a proxy in front of this server, which handles encryption and authentication.
 
-Furthermore, please make sure to enabled port forwarding, if you use servlet-containers like tomcat.
-Also make sure, that your firewall is not blocking the HTTP-server address.
+Furthermore, please make sure to enable port forwarding, if you use servlet-containers like tomcat.
+You should also set _-Dinspectit.expoters.tags.http.host=0.0.0.0_ as parameter in the tomcat start configuration.
+
+Additionally, make sure that your firewall is not blocking the HTTP-server address.
 
 The server performs authorization with checking, whether the request origin is allowed to access the server. 
 Additionally, every request has to provide a session-ID to access their own session data.
@@ -45,7 +47,7 @@ If a request to the REST-API contains a session-ID, which does not exist in Insp
 
 The HTTP-exporter can only store a specific amount of sessions, which can be configured in the configuration server.
 Sessions will be deleted after their _time-to-live_ is expired. Their time-to-live will be reset everytime a request
-the HTTP-server receives a successfull request.
+the HTTP-server receives a successful request.
 
 #### Session limits