fixes #1687 Generated HTML documentation title tags are empty

This also updates libascii and go-get dependencies to allow the
pubrefman tool to work again.

etc/pubrefman/go.mod

@@ -1,11 +1,45 @@
 module go.nanomsg.org/nng/pubrefman
 
-go 1.14
+go 1.18
 
 require (
-	github.com/bytesparadise/libasciidoc v0.3.1-0.20200802124845-5dcda3220c31
-	github.com/go-git/go-billy/v5 v5.0.0
-	github.com/go-git/go-git/v5 v5.1.0
-	github.com/google/uuid v1.1.1
-	github.com/spf13/jwalterweatherman v1.0.0
+	github.com/bytesparadise/libasciidoc v0.8.0
+	github.com/go-git/go-billy/v5 v5.5.0
+	github.com/go-git/go-git/v5 v5.9.0
+	github.com/google/uuid v1.3.1
+	github.com/spf13/jwalterweatherman v1.1.0
+)
+
+require (
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/Microsoft/go-winio v0.6.1 // indirect
+	github.com/ProtonMail/go-crypto v0.0.0-20230828082145-3c4c8a2d2371 // indirect
+	github.com/acomagu/bufpipe v1.0.4 // indirect
+	github.com/alecthomas/chroma/v2 v2.9.1 // indirect
+	github.com/cloudflare/circl v1.3.3 // indirect
+	github.com/cyphar/filepath-securejoin v0.2.4 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dlclark/regexp2 v1.10.0 // indirect
+	github.com/emirpasic/gods v1.18.1 // indirect
+	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
+	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/google/pprof v0.0.0-20230912144702-c363fe2c2ed8 // indirect
+	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
+	github.com/kevinburke/ssh_config v1.2.0 // indirect
+	github.com/mna/pigeon v1.1.0 // indirect
+	github.com/onsi/ginkgo/v2 v2.12.0 // indirect
+	github.com/pjbgf/sha1cd v0.3.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/sergi/go-diff v1.3.1 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/skeema/knownhosts v1.2.0 // indirect
+	github.com/xanzy/ssh-agent v0.3.3 // indirect
+	golang.org/x/crypto v0.13.0 // indirect
+	golang.org/x/mod v0.12.0 // indirect
+	golang.org/x/net v0.15.0 // indirect
+	golang.org/x/sys v0.12.0 // indirect
+	golang.org/x/tools v0.13.0 // indirect
+	gopkg.in/warnings.v0 v0.1.2 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )