Updated readme.

README.md

@@ -19,13 +19,14 @@ To use it in your application, import `github.com/mrobinsn/go-newznab/newznab`
 
 ## Library Usage
 
-Initialize a client:
+### Initialize a client:
 ```
-client := newznab.New("http://my-usenet-indexer/api", "my-api-key", 1234, false)
+client := newznab.New("http://my-usenet-indexer", "my-api-key", 1234, false)
 
 ```
+Note the missing `/api` part of the URL. Depending on the called method either `/api` or `/rss` will be appended to the given base URL. A valid user ID is only required for RSS methods.
 
-Search using a tvrage id:
+### Search using a tvrage id:
 ```
 categories := []int{
     newznab.CategoryTVHD,
@@ -34,7 +35,7 @@ categories := []int{
 results, _ := client.SearchWithTVRage(categories, 35048, 3, 1)
 ```
 
-Search using an imdb id:
+### Search using an imdb id:
 ```
 categories := []int{
     newznab.CategoryMovieHD,
@@ -43,22 +44,22 @@ categories := []int{
 results, _ := client.SearchWithIMDB(categories, "0364569")
 ```
 
-Search using a name and set of categories:
+### Search using a name and set of categories:
 ```
 results, _ := client.SearchWithQueries(categories, "Oldboy", "movie")
 ```
 
-Get latest releases for set of categories:
+### Get latest releases for set of categories:
 ```
 results, _ := client.SearchWithQuery(categories, "", "movie")
 ```
 
-Load latest releases via RSS:
+### Load latest releases via RSS:
 ```
 results, _ := client.LoadRSSFeed(categories, 50)
 ```
 
-Load latest releases via RSS up to a given NZB id:
+### Load latest releases via RSS up to a given NZB id:
 ```
 results, _ := client.LoadRSSFeedUntilNZBID(categories, 50, "nzb-guid", 15)
 ```