Update README.md

Clarified that the initPage and infinite scroll options, for example, with are part of the set of properties that are not available to the client are in fact not changeable at all, even on the server, after initialization.

README.md

@@ -112,7 +112,7 @@ Pages.set({
 });
 ```
 
-Available to the client:
+Available to the client anytime:
 + **dataMargin (*Number*, default = 3)** - determines how many neighboring pages on each side should be prefetched for seamless transition after loading the current page. Prefetching stops when the subscription limit (imposed by **maxSubscriptions**) is reached.
 + **filters (*Object*, default = {})** - MongoDB find query object, eg. `{name: {$lt: 5}}`
 + **itemTemplate (*String*, default = "paginateItemDefault")** - name of the template to use for items. The default template simply lists all attributes of an item
@@ -133,7 +133,7 @@ Available to the client:
 + **sort (*Object*, default = {})** - MongoDB sort determining object, eg. {name: 1}
 + **templateName (*String*, default = "")** - A name of the template to use. Defaults to the collection's name.
 
-Unavailable to the client:
+Unavailable to the client and not changeable on server either after pagination object is initialized:
 + **auth (*Function*, default = undefined)** - authorization function called by the built-in publication method with the following arguments:
    - *skip* - precalculated number of items to skip based on the number of page being published. Useful when returning a cursor.
    - *subscription* - the Meteor subscription object (*this* in *Meteor.publish()*). **In authenticated connections, *subscription.userId* holds the currently signed-in user's *_id*. Otherwise, it's *null*.**