Added bing and yandex verification

Added ability to verify the site with bing and yandex webmaster tool

exampleSite/config.toml

@@ -47,6 +47,8 @@ disqusShortname = "yourdiscussshortname"
     home_mode = "" # post or other
 
     google_verification = ""
+    bing_verification = ""
+    yandex_verification = ""
 
     socialShare = true
     

layouts/partials/head.html

@@ -4,6 +4,8 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <meta name="robots" content="noodp"/>
   {{ with .Site.Params.google_verification }}<meta name="google-site-verification" content="{{ . }}" />{{ end }}
+  {{ with .Site.Params.bing_verification }}<meta name="msvalidate.01" content="{{ . }}" />{{end}}
+  {{ with .Site.Params.yandex_verification }}<meta name="yandex-verification" content="{{ . }}" />{{ end }}
   {{ if .PrevInSection }}<link rel="prev" href="{{.PrevInSection.Permalink}}" />{{end}}
   {{ if .NextInSection}}<link rel="next" href="{{ .NextInSection.Permalink }}" />{{end}}
   <link rel="canonical" href="{{ .Permalink }}" />