misc: Markdown cleanups for the 20.01 release

Type: docs
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
Change-Id: I821197364a2fee9b52b1f014288b1f5e9e3c494c
(cherry picked from commit fc98203b5d)

extras/http/sample.md.hugo

@@ -0,0 +1,82 @@
+---
+title: Home
+---
+
+# VPP Status
+
+### Here's the version...
+
+VPP version: <div id="VPPversion"></div>
+
+build date: <div id="VPPbuilddate"></div>
+
+<div id="like_button_container"></div>
+
+### Show Interface
+
+<p>Enter the interface name, then click "Submit" to display interface stats:</p>
+
+<input id="ifacename" type="text"></input>
+<button onclick="getStats()">Get Stats</button>
+
+<div id="ifacestats"></div>
+
+{{< rawhtml >}}
+
+<script>
+function getStats() {
+    var url="http://192.168.10.1:1234/interface_stats.json?";
+    var iface=document.getElementById("ifacename").value;
+    url=url.concat(iface);
+    fetch(url, {
+        method: 'POST',
+        mode: 'no-cors',
+        cache: 'no-cache',
+        headers: {
+                 'Content-Type': 'application/json',
+        },
+})
+.then((response) => response.json())
+.then(function(obj) {
+      console.log(obj)
+      var result=obj.interface_stats.name;
+      result = result.concat(": rx-pkts: ");
+      result = result.concat(obj.interface_stats.rx_packets);
+      result = result.concat(" rx-bytes: ");
+      result = result.concat(obj.interface_stats.rx_bytes);
+      result = result.concat(": tx-pkts: ");
+      result = result.concat(obj.interface_stats.tx_packets);
+      result = result.concat(" tx-bytes: ");
+      result = result.concat(obj.interface_stats.tx_bytes);
+      result = result.concat(" drops: ");
+      result = result.concat(obj.interface_stats.drops);
+      result = result.concat(" ip4: ");
+      result = result.concat(obj.interface_stats.ip4);
+      result = result.concat(" ip6: ");
+      result = result.concat(obj.interface_stats.ip6);
+
+      document.getElementById("ifacestats").innerHTML=result;
+})
+.catch(function(error) {
+      console.log(error);
+})}
+// unconditionally populate vpp version info ->
+fetch('http://192.168.10.1:1234/version.json', {
+    method: 'GET',
+    mode: 'no-cors',
+    cache: 'no-cache',
+    headers: {
+         'Content-Type': 'application/json',
+    },
+})
+.then((response) => response.json())
+.then(function(obj) {
+      document.getElementById("VPPbuilddate").innerHTML=obj.vpp_details.build_date;
+      document.getElementById("VPPversion").innerHTML=obj.vpp_details.version;
+})
+.catch(function(error) {
+      console.log(error);
+});
+</script>
+
+{{< /rawhtml >}}

extras/lcov/README.md

@@ -1,3 +1,5 @@
+# Code coverage analysis with lcov  {#lcov_code_coverage}
+
 ## Prerequisites
 
 The Linux gcov and lcov tools are fussy about gcc / g++ compiler