fix some titles and links

stuff.md

@@ -1,5 +1,5 @@
 ---
-Title: Stuff I've cobbled together
+title: Stuff I've cobbled together
 ---
 
 I've only recently revived my website, and this part isn't properly

templates/default.html

@@ -19,7 +19,7 @@
           <a href="/about.html">About</a><br/>
           <a href="/work.html">Work</a><br/>
           <a href="/talks.html">Talks</a><br/>
-          <a href="/Stuff.html">Stuff</a><br/>
+          <a href="/stuff.html">Stuff</a><br/>
           <a href="/archive.html">Archive</a><br/>
         </div>
 

work.md

@@ -1,5 +1,5 @@
 ---
-Title: Me, Professionally
+title: Me, Professionally
 ---
 
 I've been in the industry since before the dot-com boom of the late