Document the add_mentor.py tool.
Document the add_mentor.py tool.

brainwane/zulip,dhcrzf/zulip,zulip/zulip,hackerkid/zulip,eeshangarg/zulip,eeshangarg/zulip,kou/zulip,rht/zulip,rht/zulip,synicalsyntax/zulip,jackrzhang/zulip,shubhamdhama/zulip,shubhamdhama/zulip,punchagan/zulip,synicalsyntax/zulip,synicalsyntax/zulip,brainwane/zulip,tommyip/zulip,mahim97/zulip,kou/zulip,kou/zulip,dhcrzf/zulip,brainwane/zulip,punchagan/zulip,eeshangarg/zulip,zulip/zulip,timabbott/zulip,dhcrzf/zulip,rht/zulip,synicalsyntax/zulip,showell/zulip,rht/zulip,andersk/zulip,hackerkid/zulip,showell/zulip,andersk/zulip,mahim97/zulip,eeshangarg/zulip,hackerkid/zulip,jackrzhang/zulip,zulip/zulip,tommyip/zulip,dhcrzf/zulip,timabbott/zulip,rishig/zulip,brainwane/zulip,andersk/zulip,hackerkid/zulip,andersk/zulip,synicalsyntax/zulip,shubhamdhama/zulip,rht/zulip,mahim97/zulip,tommyip/zulip,timabbott/zulip,rht/zulip,brainwane/zulip,timabbott/zulip,showell/zulip,shubhamdhama/zulip,rishig/zulip,zulip/zulip,timabbott/zulip,hackerkid/zulip,kou/zulip,shubhamdhama/zulip,tommyip/zulip,mahim97/zulip,timabbott/zulip,andersk/zulip,eeshangarg/zulip,kou/zulip,hackerkid/zulip,rishig/zulip,rishig/zulip,eeshangarg/zulip,hackerkid/zulip,eeshangarg/zulip,andersk/zulip,rishig/zulip,tommyip/zulip,punchagan/zulip,timabbott/zulip,tommyip/zulip,kou/zulip,jackrzhang/zulip,rishig/zulip,punchagan/zulip,punchagan/zulip,shubhamdhama/zulip,jackrzhang/zulip,dhcrzf/zulip,dhcrzf/zulip,jackrzhang/zulip,rishig/zulip,synicalsyntax/zulip,brainwane/zulip,dhcrzf/zulip,mahim97/zulip,brainwane/zulip,showell/zulip,shubhamdhama/zulip,synicalsyntax/zulip,zulip/zulip,tommyip/zulip,zulip/zulip,jackrzhang/zulip,showell/zulip,showell/zulip,zulip/zulip,punchagan/zulip,andersk/zulip,rht/zulip,jackrzhang/zulip,mahim97/zulip,kou/zulip,punchagan/zulip,showell/zulip