Show tweet/user count in the main page

src/templates/index.mustache

@@ -1,5 +1,7 @@
 <p>welcome to the twtxt list. this is an openly available list of users of <a href="https://github.com/buckket/twtxt">twtxt</a>, the decentralized microblogging tool. this will poll every submitted user every 5 minutes to update its view.</p>
 
+<p>this site currently indexes {{ users }} users and {{ tweets }} tweets.</p>
+
 <h3>links</h3>
 
 <ul>

src/twtxtlist.nim

@@ -55,7 +55,15 @@ settings:
 
 routes:
   get "/":
-    renderMustache("home", indexTemplate, newContext())
+    var ctx = newContext()
+    let
+      users = db.getValue sql"select count(*) from users"
+      tweets = db.getValue sql"select count(*) from tweets"
+
+    ctx["users"] = users
+    ctx["tweets"] = tweets
+
+    renderMustache("home", indexTemplate, ctx)
 
   get "/changelog":
     const log = staticExec "git log -10"