portico: Add link for accessibility on /features.
portico: Add link for accessibility on /features.

hackerkid/zulip,rht/zulip,rishig/zulip,kou/zulip,kou/zulip,showell/zulip,rht/zulip,shubhamdhama/zulip,rht/zulip,eeshangarg/zulip,punchagan/zulip,rishig/zulip,rishig/zulip,hackerkid/zulip,synicalsyntax/zulip,rishig/zulip,kou/zulip,tommyip/zulip,tommyip/zulip,showell/zulip,shubhamdhama/zulip,showell/zulip,showell/zulip,timabbott/zulip,shubhamdhama/zulip,shubhamdhama/zulip,brainwane/zulip,brainwane/zulip,hackerkid/zulip,synicalsyntax/zulip,rishig/zulip,eeshangarg/zulip,rishig/zulip,rishig/zulip,showell/zulip,punchagan/zulip,kou/zulip,shubhamdhama/zulip,timabbott/zulip,rht/zulip,brainwane/zulip,synicalsyntax/zulip,zulip/zulip,tommyip/zulip,andersk/zulip,zulip/zulip,tommyip/zulip,punchagan/zulip,timabbott/zulip,andersk/zulip,showell/zulip,zulip/zulip,kou/zulip,brainwane/zulip,rht/zulip,synicalsyntax/zulip,eeshangarg/zulip,rht/zulip,synicalsyntax/zulip,punchagan/zulip,punchagan/zulip,eeshangarg/zulip,hackerkid/zulip,eeshangarg/zulip,punchagan/zulip,brainwane/zulip,eeshangarg/zulip,rht/zulip,timabbott/zulip,shubhamdhama/zulip,zulip/zulip,punchagan/zulip,tommyip/zulip,timabbott/zulip,kou/zulip,synicalsyntax/zulip,kou/zulip,shubhamdhama/zulip,andersk/zulip,brainwane/zulip,andersk/zulip,timabbott/zulip,andersk/zulip,tommyip/zulip,showell/zulip,andersk/zulip,synicalsyntax/zulip,timabbott/zulip,tommyip/zulip,hackerkid/zulip,zulip/zulip,andersk/zulip,hackerkid/zulip,brainwane/zulip,eeshangarg/zulip,hackerkid/zulip,zulip/zulip,zulip/zulip