Update project release notes

Author: YevgeniyShunevych

src/Atata.Bootstrap/Atata.Bootstrap.csproj

@@ -13,7 +13,8 @@
     <PackageIconUrl>https://raw.githubusercontent.com/atata-framework/atata/master/logo.png?v2</PackageIconUrl>
     <RepositoryUrl>https://github.com/atata-framework/atata-bootstrap</RepositoryUrl>
     <PackageTags>atata automation testing test selenium webdriver browser bootstrap</PackageTags>
-    <PackageReleaseNotes>0.5.0 - https://atata-framework.github.io/blog/2017/10/17/atata.bootstrap-0.5.0-released/
+    <PackageReleaseNotes>0.6.0 - https://atata-framework.github.io/blog/2017/12/29/atata.bootstrap-0.6.0-released/
+0.5.0 - https://atata-framework.github.io/blog/2017/10/17/atata.bootstrap-0.5.0-released/
 0.4.1 - https://github.com/atata-framework/atata-bootstrap/releases/tag/v0.4.1
 0.4.0 - https://github.com/atata-framework/atata-bootstrap/releases/tag/v0.4.0
 0.3.0 - Initial release.</PackageReleaseNotes>