Update Issuer value for SP application

The Issuer value by default is not the policy name. This can also be overwritten so best advice is to check with EntitiyId within the SAML Metadata
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cc: @msmimart

Author: WhippsP

articles/active-directory-b2c/connect-with-saml-service-providers.md

@@ -333,7 +333,7 @@ The last step is to enable Azure AD B2C as a SAML IdP in your SAML relying party
 Some or all the following are typically required:
 
 * **Metadata**: `https://tenant-name.b2clogin.com/tenant-name.onmicrosoft.com/policy-name/Samlp/metadata`
-* **Issuer**:   `https://tenant-name.b2clogin.com/tenant-name.onmicrosoft.com/policy-name`
+* **Issuer**:   Use the entityID in the metadata file
 * **Login Url/SAML endpoint/SAML Url**: Check the value in the metadata file
 * **Certificate**: This is *B2C_1A_SamlIdpCert*, but without the private key. To get the public key of the certificate: