Library functions and modules should be in the 3 man page section. Also the files should end in '.3'

docs/man/man3/ansible.copy.3

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+.TH ANSIBLE.COPY 5 "2012-10-02" "0.8" "ANSIBLE MODULES"
+." generated from library/copy
+.SH NAME
+copy \- Copies files to remote locations.
+." ------ DESCRIPTION
+.SH DESCRIPTION
+.PP
+The \fIcopy\fR module copies a file on the local box to remote locations. 
+." ------ OPTIONS
+."
+."
+.SH OPTIONS
+
+.IP dest
+Remote absolute path where the file should be copied to.(required)
+.IP src
+Local path to a file to copy to the remote server; can be absolute or relative.(required)
+.IP backup
+Create a backup file including the timestamp information so you can get the original file back if you somehow clobbered it incorrectly.
+.IR Choices :
+yes,no. (default: no)(Added in Ansible version 0.7.)
+
+.IP others
+all arguments accepted by the \fIfile\fR module also work here."
+."
+." ------ NOTES
+."
+."
+." ------ EXAMPLES
+.SH EXAMPLES
+.PP
+.nf
+copy src=/srv/myfiles/foo.conf dest=/etc/foo.conf owner=foo group=foo mode=0644
+.fi
+.PP
+.nf
+copy src=/mine/ntp.conf dest=/etc/ntp.conf owner=root group=root mode=644 backup=yes
+.fi
+." ------- AUTHOR
+.SH AUTHOR
+Michael DeHaan
+.SH SEE ALSO
+.IR ansible (1),
+.I http://ansible.github.com/modules.html#copy