Fix a broken link

docs/uclibc.org/toolchains.html

@@ -62,8 +62,8 @@ strace, busybox, GNU coreutils, GNU tar, GNU grep, etc.
 
 Each of these uClibc development systems was created using
 <a href="http://buildroot.uclibc.org/">buildroot</a>, specifically,
-<a href="http://www.uclibc.org/downloads/buildroot.tar.bz2">buildroot.tar.bz2</a>
-along with <a href="http://www.uclibc.org/downloads/buildroot-sources">these sources</a>.
+<a href="http://buildroot.uclibc.org/downloads/buildroot-0.9.27.tar.bz2">buildroot-0.9.27.tar.bz2</a>
+along with <a href="http://buildroot.uclibc.org/downloads/buildroot-sources">these sources</a>.
 
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