Add theme for example site

exampleSite/.gitignore

+.hugo_build.lock
\ No newline at end of file

exampleSite/config.toml

 baseurl = "https://example.com/"
 languageCode = "en"
 title = "Soho Theme"
+theme = "github.com/alexandrevicenzi/soho"
 DefaultContentLanguage = "en"
 enableInlineShortcodes = true
 summarylength = 10

exampleSite/go.mod

+module github.com/alexandrevicenzi/soho/exampleSite
+
+go 1.12
+
+require github.com/alexandrevicenzi/soho v1.1.0 // indirect

exampleSite/go.sum

+github.com/alexandrevicenzi/soho v1.1.0 h1:vXAEpvWPa8qo9JbZNyFHwr6/MDadZpslo1+GBn+c6kU=
+github.com/alexandrevicenzi/soho v1.1.0/go.mod h1:OJk59xwtMsfVCt+dVL3rOqXj9HW7ThJYP6rCULyx9Jw=