A few typos.

www/doc/hw-recommend.html

@@ -223,7 +223,7 @@ recommendations, and outlines the consequences of each choice.
 		more harm than good. The main problems are that they make it
 		difficult to disconnect the cables one connected, and that they
 		get in the way on densely-connected switches. Cables with
-		'molded strain releif' are better than cables with boots, but
+		'molded strain relief' are better than cables with boots, but
 		are often much more extensive. We buy cables in two-foot
 		increments, which keeps slack low without making the order too
 		complicated. Our standard so far has been to make control net
@@ -248,7 +248,7 @@ recommendations, and outlines the consequences of each choice.
 		<a href="http://www.apc.com">APC</a>. Our newer nodes use the
 		RPC-27 from <a href="http://www.baytechdcd.com/">BayTech</a>,
 		20-outlet vertically-mounted, serial-controlled power
-		controllers. The serial controllers are genrally cheaper, and
+		controllers. The serial controllers are generally cheaper, and
 		the more ports on each controller, the cheaper.</dd>
 
 	<dt><b>Serial (console) ports</b></dt>