updating code block format

Author: hackorama

README.md

@@ -5,14 +5,14 @@ Read the key, element pairs from a java properties file
 
 Follows the [java properties file format](http://docs.oracle.com/javase/6/docs/api/java/util/Properties.html#load(java.io.Reader)) and tested against the Java 6 version of java.util.Properties
 
-Args:
-  propfile: a valid file object (as returned by open(filename))
-Returns:
-  The property key and elements as a dict
-Raises:
-  IOError: if file operation fails with I/O related reason
-    Corresponds to java IOException in Properties.load()
-  UnicodeDecodeError: if the property file has malformed \uxxxx encoding,
-    Corresponds to java IllegalArgumentException in Properties.load()
-  AttributeError: if invalid object was provided for file object
-    Corresponds to java NullPointerException
+    Args:
+      propfile: a valid file object (as returned by open(filename))
+    Returns:
+      The property key and elements as a dict
+    Raises:
+      IOError: if file operation fails with I/O related reason
+      Corresponds to java IOException in Properties.load()
+    UnicodeDecodeError: if the property file has malformed \uxxxx encoding,
+      Corresponds to java IllegalArgumentException in Properties.load()
+    AttributeError: if invalid object was provided for file object
+      Corresponds to java NullPointerException