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

docs/man/man3/ansible.subversion.3

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+.TH ANSIBLE.SUBVERSION 5 "2012-10-02" "0.8" "ANSIBLE MODULES"
+." generated from library/subversion
+.SH NAME
+subversion \- Deploys a subversion repository.
+." ------ DESCRIPTION
+.SH DESCRIPTION
+.PP
+This module is really simple, so for now this checks out from the given branch of a repo at a particular SHA or tag. Latest is not supported, you should not be doing that. 
+." ------ OPTIONS
+."
+."
+.SH OPTIONS
+
+.IP repo
+The subversion URL to the repository.(required)
+.IP dest
+Absolute path where the repository should be deployed.(required)
+.IP force
+If yes, any modified files in the working repository will be discarded. If no, this module will fail if it encounters modified files.
+.IR Choices :
+yes,no. (default: True)."
+."
+." ------ NOTES
+.SH NOTES
+.PP
+Requires subversion and grep on the client. 
+."
+."
+." ------ EXAMPLES
+.SH EXAMPLES
+.PP
+.nf
+subversion repo=svn+ssh://an.example.org/path/to/repo dest=/src/checkout
+.fi
+." ------- AUTHOR
+.SH AUTHOR
+Dane Summers
+.SH SEE ALSO
+.IR ansible (1),
+.I http://ansible.github.com/modules.html#subversion