docs: Fix a few changelog typos.
docs: Fix a few changelog typos.

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