diff --git a/README.html b/README.html
index a21618d..accc3d4 100644
--- a/README.html
+++ b/README.html
@@ -147,7 +147,7 @@ ${RRDTOOL} graph ${IMAGES}/${HOST}-${INTERFACE}.png \
 
 <p>To pinpoint the network interface you want to measure the bandwith for, this command prints the available interfaces:</p>
 
-<pre><code>snmpctl snmp walk  community  oid ifDescr
+<pre><code>snmpctl snmp walk [host] community [community] oid ifDescr
 </code></pre>
 
 <p>This will output a list like:</p>
@@ -165,7 +165,7 @@ ifDescr.670=&quot;tap1&quot;
 
 <p>The number behind <code>ifDescr</code> is the one that you need to feed to <strong>interface.sh</strong>, for example:</p>
 
-<pre><code># interface.sh  5
+<pre><code># interface.sh 5
 </code></pre>
 
 <p>Finally the <strong>wrapper.sh</strong> script calls all the aforementioned scripts:</p>