Update changelog

Author: Kapil Borle

CHANGELOG.MD

@@ -1,9 +1,16 @@
-## [unreleased]
+## [1.13.0](https://github.com/PowerShell/PSScriptAnalyzer/tree/1.13.0) - 2017-05-18
 
-## Fixed
+### Added
+- [`PSUseSupportsShouldProcess`](https://github.com/PowerShell/PSScriptAnalyzer/blob/f92dabdef61b87d5f9f9f2140739c9f3f210b2d8/RuleDocumentation/UseSupportsShouldProcess.md) rule to discourage manual `whatif` and `confirm` parameter declarations.
+- Suggested corrections to [`PSProvideCommentHelp`](https://github.com/PowerShell/PSScriptAnalyzer/blob/f92dabdef61b87d5f9f9f2140739c9f3f210b2d8/RuleDocumentation/ProvideCommentHelp.md) rule. The rule can now be configured to:
+    - trigger on non-exported functions. But by default, the rule triggers only on exported functions that do have comment help.
+    - place the suggested corrections either before a function definition, or at the beginning or end of a function's body.
+    - choose between block comment or line comment style of suggested comment help correction.
+
+### Fixed
 - `PSAlignAssignmentStatement` to align assignment statements in DSC configurations that have *Undefined DSC Resource* parse errors.
 
-## [1.12.0](https://github.com/PowerShell/PSScriptAnalyzer/tree/1.11.1) - 2017-05-09
+## [1.12.0](https://github.com/PowerShell/PSScriptAnalyzer/tree/1.12.0) - 2017-05-09
 
 ### Added
 - [PSAlignAssignmentRuleStatement](https://github.com/PowerShell/PSScriptAnalyzer/blob/cca9a2d7ee35be7322f8c5a09b6c500a0a8bd101/RuleDocumentation/AlignAssignmentStatement.md) rule to align assignment statements in property value pairs (#753).