Polish docs for URL and XML helpers and deprecate obsolete options for String helper random_string() and URL helper url_title()
diff --git a/user_guide_src/source/helpers/string_helper.rst b/user_guide_src/source/helpers/string_helper.rst
index 1c24044..d0d3024 100644
--- a/user_guide_src/source/helpers/string_helper.rst
+++ b/user_guide_src/source/helpers/string_helper.rst
@@ -31,18 +31,13 @@
The first parameter specifies the type of string, the second parameter
specifies the length. The following choices are available:
-alpha, alunum, basic, numeric, nozero, md5 and sha1
-
- **alpha**: A string with lower and uppercase letters only.
- **alnum**: Alpha-numeric string with lower and uppercase characters.
- **basic**: A random number based on ``mt_rand()``.
- **numeric**: Numeric string.
- **nozero**: Numeric string with no zeros.
-- **unique**: Encrypted with MD5 and uniqid(). Note: The length
- parameter is not available for this type. Returns a fixed length 32
- character string.
-- **md5**: An encrypted random number based on ``md5()``.
-- **sha1**: An encrypted random number based on ``sha1()``.
+- **md5**: An encrypted random number based on ``md5()`` (fixed length of 32).
+- **sha1**: An encrypted random number based on ``sha1()`` (fixed length of 40).
Usage example::