Advertise wget and curl (Closes #1147)

download.html.in

@@ -30,7 +30,14 @@
 </p>
 
 <p>To install it right away for all UNIX users (Linux, OS X, etc.), type:
-<code class="commands">sudo wget @PROGRAM_URL@ -O /usr/local/bin/youtube-dl<br/>sudo chmod a+x /usr/local/bin/youtube-dl</code>
+<code class="commands">sudo curl @PROGRAM_URL@ -o /usr/local/bin/youtube-dl<br/>
+sudo chmod a+x /usr/local/bin/youtube-dl</code>
+</p>
+
+<p>If you do not have curl, you can alternatively use a recent wget:
+
+<code class="commands">sudo wget @PROGRAM_URL@ -O /usr/local/bin/youtube-dl<br/>
+sudo chmod a+x /usr/local/bin/youtube-dl</code>
 </p>
 
 <p>You can also use pip: