remove old lecture 1 and rename the new one

Author: markdunning

Lectures/Lect1_HTSeq_Introduction_Sept2014.pdf

@@ -121,7 +121,7 @@ <h3>
   <a id="day1" class="anchor" href="#day1" aria-hidden="true"><span class="octicon octicon-link"></span></a>Day One.</h3>
   <p>
 
-  <li><a href="Lectures/ngs-intro.html">Introduction to NGS Sequencing (L)</a></li>
+  <li><a href="Lectures/Lect1_ngs-intro.html">Introduction to NGS Sequencing (L)</a></li>
   <li><a href="Practicals/1.bioc-intro.pdf">R and Bioconductor recap (P)</li>
   <li><a href="Lectures/Lect2-StringsAndRanges.pdf">Representing Sequencing data in Bioconductor (L) </a></li>
   <li><a href="Practicals/2. StringsAndRanges-Prac.pdf">Representing Sequencing data in Bioconductor (P)</a></li>