docs: Fix path for API code markdown extension.
docs: Fix path for API code markdown extension.

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