Add links to issue/PR in Changelog

CHANGELOG.md

@@ -5,24 +5,24 @@
 [Full Changelog](https://github.com/sferik/rails_admin/compare/v0.6.8...v0.7.0)
 
 ### Added
-- Support for ActiveRecord::Enum (#1993)
-- Multiselect-widget shows user friendly message, instead of just being blank (#1369, #2360)
-- Configuration option to turn browser validation off (#2339, #2373)
+- Support for ActiveRecord::Enum ([#1993](https://github.com/sferik/rails_admin/issues/1993))
+- Multiselect-widget shows user friendly message, instead of just being blank ([#1369](https://github.com/sferik/rails_admin/issues/1369), [#2360](https://github.com/sferik/rails_admin/pull/2360))
+- Configuration option to turn browser validation off ([#2339](https://github.com/sferik/rails_admin/pull/2339), [#2373](https://github.com/sferik/rails_admin/pull/2373))
 
 ### Changed
-- Multiselect-widget inserts a new item to the bottom, instead of top (#2167)
-- Migrated Cerulean theme to Bootstrap3 (#2352)
-- Better html markup for input fields (#2336)
-- Update filter dropdown button to Bootstrap3 (#2277)
-- Improve navbar appearance (#2310)
-- Do not monkey patch the app's YAML (#2331)
+- Multiselect-widget inserts a new item to the bottom, instead of top ([#2167](https://github.com/sferik/rails_admin/pull/2167))
+- Migrated Cerulean theme to Bootstrap3 ([#2352](https://github.com/sferik/rails_admin/pull/2352))
+- Better html markup for input fields ([#2336](https://github.com/sferik/rails_admin/pull/2336))
+- Update filter dropdown button to Bootstrap3 ([#2277](https://github.com/sferik/rails_admin/pull/2277))
+- Improve navbar appearance ([#2310](https://github.com/sferik/rails_admin/pull/2310))
+- Do not monkey patch the app's YAML ([#2331](https://github.com/sferik/rails_admin/pull/2331))
 
 ### Fixed
-- Browser validation prevented saving of persisted upload fields (#2376)
-- Fix inconsistent styling in static_navigation (#2378)
-- Fix css regression for has_one and has_many nested form (#2337)
-- HTML string inputs should not have a size attribute valorized with 0 (#2335)
+- Browser validation prevented saving of persisted upload fields ([#2376](https://github.com/sferik/rails_admin/issues/2376))
+- Fix inconsistent styling in static_navigation ([#2378](https://github.com/sferik/rails_admin/pull/2378))
+- Fix css regression for has_one and has_many nested form ([#2337](https://github.com/sferik/rails_admin/pull/2337))
+- HTML string inputs should not have a size attribute valorized with 0 ([#2335](https://github.com/sferik/rails_admin/pull/2335))
 
 ### Security
 - Fix XSS vulnerability in filtering-select widget
-- Fix XSS vulnerability in association fields (#2343)
+- Fix XSS vulnerability in association fields ([#2343](https://github.com/sferik/rails_admin/issues/2343))