docs: Clarify the IdP initiated authentication documentation slightly.

- Fix the entityID in the example URL to be a valid entityID.
- Clarify the difference between `TARGET` in authentication response
  vs. `target` in authentication "request".

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2884 44740490-163a-0410-bde0-09ae8108e29a

docs/simplesamlphp-idp-more.txt

@@ -46,7 +46,7 @@ If you do not want to start the SSO flow at the SP, you may use the IdP-first se
 
 Here is an example of such an url:
 
-	https://idp.example.org/simplesaml/saml2/idp/SSOService.php?spentityid=dev.andreas.feide.no
+	https://idp.example.org/simplesaml/saml2/idp/SSOService.php?spentityid=urn:mace:feide.no:someservice
 
 You can also add a RelayState parameter to the IdP-first URL:
 
@@ -73,10 +73,12 @@ The parameters are as follows:
     This parameter is required.
 
 `target`
-:   The target parameter the SP should receive.
+:   The target parameter the SP should receive with the authentication response.
     This is often the page the user should be sent to after authentication.
     This parameter is optional for the IdP, but must be specified if the SP you are targeting is running simpleSAMLphp SP.
 
+:   *Note*: This parameter must be sent as `target` (with lowercase letters) when starting the authentication, while it is sent as `TARGET` (with uppercase letters) in the authentication response.
+
 
 IdP-initiated logout
 --------------------

modules/saml/docs/sp.txt

@@ -319,7 +319,9 @@ Options
 :   The page the user should be redirected to after an IdP initiated SSO.
 
 :   *Note*: SAML 2 specific.
-    For SAML 1.1 SPs, you must specify the `TARGET` in the authentication response.
+    For SAML 1.1 SPs, you must specify the `TARGET` parameter in the authentication response.
+    How to set that parameter is depends on the IdP.
+    For simpleSAMLphp, see the documentation for [IdP-first flow](./simplesamlphp-idp-more#section_4_1).
 
 `url`
 :   An URL to your service provider. Will be added as an OrganizationURL-element in the metadata.