Merge branch 'releases/1.12.5'
[2.3.0] Wrote release announcement
[2.3.0] Compiled blog
[2.3.0] prepare site for release

- update homepage, download links, doc links
[2.3.0] Updated contributors list

- 560!!!
Merge branch 'releases/2.3.0' into develop

2.3.0 readiness