more footer tweaks

views/layout.pug

@@ -103,13 +103,20 @@ html
 								dd
 									a(href=("https://github.com/janoside/btc-rpc-explorer/commit/" + sourcecodeVersion)) #{sourcecodeVersion}
 
-								dt Public Demo
+								if (env.demoSite)
+									dt Public Demos
 									dd
 										if (coinConfig.demoSiteUrl)
 											a(href=coinConfig.demoSiteUrl) #{coinConfig.demoSiteUrl}
 										else
 											a(href="https://btc-explorer.chaintools.io") https://btc-explorer.chaintools.io
 										
+										div(class="mt-2")
+											a(href="https://btc-explorer.chaintools.io", class="mr-2")
+												img(src="/img/logo/btc.svg")
+											a(href="https://ltc-explorer.chaintools.io")
+												img(src="/img/logo/ltc.svg")
+
 						div(class="col-md-6 text-md-right")
 							dl
 								dt Support Development of #{coinConfig.siteTitle}