add: Dockerfile + update baseUrl

* also enhance footer partial that cries when a ref goes missing (such
  as when a branch is merged)

Dockerfile

@@ -0,0 +1,15 @@
+FROM immawanderer/fedora-hugo:latest
+RUN mkdir -pv /homepage
+COPY . /homepage
+
+WORKDIR /homepage
+
+RUN git submodule init \
+&& git submodule update --recursive \
+&& hugo version
+RUN hugo --minify --gc=true
+
+WORKDIR /
+
+FROM nginx
+COPY --from=0 /homepage/public/ /usr/share/nginx/html

config.toml

@@ -1,4 +1,4 @@
-baseurl = "https://dotya.ml"
+baseurl = "/"
 languageCode = "en-us"
 defaultContentLanguage = "en"
 theme = "hermit"

layouts/partials/footer.html

@@ -1,3 +1,3 @@
 	<footer id="site-footer" class="section-inner thin animated fadeIn faster">
-		<p>&copy; {{ now.Format "2006" }} <a href="{{ .Site.BaseURL }}">{{ .Site.Author.name }}</a>{{ .Site.Params.footerCopyright | safeHTML }} &#183 <a href="https://git.dotya.ml/dotya.ml/homepage" title="source code" target="_blank" rel="noopener">source</a> &#183 <a href="https://status.dotya.ml" title="service status" target="_blank" rel="noopener">status</a><br/><a href="https://git.dotya.ml/dotya.ml/homepage/commit/{{ .GitInfo.Hash }}" target="_blank" rel="noopener">commit {{ .GitInfo.AbbreviatedHash }}</a></p>
+		<p>&copy; {{ now.Format "2006" }} <a href="{{ .Site.BaseURL }}">{{ .Site.Author.name }}</a>{{ .Site.Params.footerCopyright | safeHTML }} &#183 <a href="https://git.dotya.ml/dotya.ml/homepage" title="source code" target="_blank" rel="noopener">source</a> &#183 <a href="https://status.dotya.ml" title="service status" target="_blank" rel="noopener">status</a>{{if .Site.Params.enableGitInfo}}<br/><a href="https://git.dotya.ml/dotya.ml/homepage/commit/{{ .GitInfo.Hash }}" target="_blank" rel="noopener">commit {{ .GitInfo.AbbreviatedHash }}</a>{{end}}</p>
 	</footer>