update static

docs/functions.rst

@@ -36,23 +36,22 @@ is functionally equivalent to
 
 static function and property
 ----------------------------
-A static function/property can be referenced with contract name without an instantiated contract, similar to a static function/property in Javascript or C++.
-A static property can also be referenced without the contract prefix, but only in the contract it is defined in.
+A static property/function can be referenced with contract name as prefix without an instantiated contract, similar to a static function/property in Javascript or C++.
+A static property/function can also be referenced without the contract prefix, but only in the contract it is defined in.
 
 .. code-block:: solidity
 
-    contract Foo {
-        int i;
+    library Foo {
         static int N = 0;
 
         static function incByN(int a): int {
-                // N is used without Foo prefix
-                return a + N;
+            // N is used with and without Foo prefix
+            return a + Foo.N + N;
         }
 
         static function double(int x): int {
-            // N is used with Foo prefix
-            return Foo.incByN(x) + this.i + Foo.N;
+            // incByN() is called with prefix and without
+            return Foo.incByN(x) + incByN(x);
         }
     }