Cleanup (README formatting)

README.md

@@ -59,8 +59,8 @@ The rest of options can be left as they are: they are aimed at professional reve
 - fdi (1): de-inline finally structures
 - mpm (0): maximum allowed processing time per decompiled method, in seconds. 0 means no upper limit
 - ren (0): rename ambiguous (resp. obfuscated) classes and class elements
-- urc: full name of user-supplied class implementing IIdentifierRenamer. It is used to determine which class identifiers
-         should be renamed and provides new identifier names (see "Renaming identifiers")
+- urc (-): full name of a user-supplied class implementing IIdentifierRenamer interface. It is used to determine which class identifiers
+           should be renamed and provides new identifier names (see "Renaming identifiers")
 - inn (1): check for IntelliJ IDEA-specific @NotNull annotation and remove inserted code if found
 - lac (0): decompile lambda expressions to anonymous classes
 - nls (0): define new line character to be used for output. 0 - '\r\n' (Windows), 1 - '\n' (Unix), default is OS-dependent