add InfCloud client example

Client-InfCloud.md

@@ -0,0 +1,48 @@
+# General
+
+* Source: https://inf-it.com/open-source/clients/infcloud/
+* Installation instructions: https://inf-it.com/infcloud/readme.txt
+
+# Precondition
+
+* Radicale is running behind same reverse proxy as "InfCloud" is served and `/radicale` is forwarded from reverse proxy to local server port
+
+# Configuration
+
+## Configuration InfCloud
+
+Adjust config.js to following:
+
+```
+var globalNetworkCheckSettings={
+	href: location.protocol+'//'+location.hostname+
+		(location.port ? ':'+location.port: '')+
+		location.pathname.replace(RegExp('/+[^/]+/*(index\.html)?$'),'')+
+		'/radicale/',
+        ...
+        settingsAccount: false,
+        ...
+```
+
+## Configuration Radicale "rights"
+
+```
+# Allow reading base of user collections
+[base]
+user: .+
+collection:
+permissions: R
+
+# Allow reading and writing principal collection (same as username)
+[principal]
+user: .+
+collection: {user}
+permissions: RW
+
+# Allow reading and writing calendars and address books that are direct
+# children of the principal collection
+[children]
+user: .+
+collection: {user}/[^/]+
+permissions: rw
+```