bug fix. hope it helps...

_posts/2013-04-01-newlogo.md

@@ -43,13 +43,13 @@ David R. Gordine, Boston, 1982.
 </p>
 
 <p>
-«<em>
+``<em>
 Construct first a square ABCD, and bisect AC at E, BD at F, AB at G, and CD
 at H. Draw the straight lines EF and GH, thereby establishing a point I at
 their intersection. From the center I, describe a circle JIK on EF, the diameter
 of which is one-ninth the distance AB. Using that same radius, describe
 a circle LJI, thereby establishing a point N on the perimeter of the
-circle I. ....... </em>»
+circle I. ....... </em>''
 </p>
 
 <IMG src="../../../../../April13/img/c.png">
@@ -101,35 +101,35 @@ Luckily we contacted an expert in logos and brand development.
 </p>
 
 <p>
-«<em>A logo is an abstraction</em>»  explained Mark Höwe,  Chief Creative of 
+``<em>A logo is an abstraction</em>'' explained Mark Höwe,  Chief Creative of 
 the web agency Haatchi&amp;Haatchi, and he illustrated what he meant
 with the images on the right.
 
 <IMG src="../../../../../April13/img/painted-seagull.png">
 
-«<em>CGAL is not a zoo, right!</em>»  Mark said, and he continued
-«<em>Was CGAL an application like Picasa, inkscape, or gimp, a painting would 
-have been a serious option.</em>» 
+``<em>CGAL is not a zoo, right!</em>''  Mark said, and he continued
+``<em>Was CGAL an application like Picasa, inkscape, or gimp, a painting would 
+have been a serious option.</em>'' 
 </p>
 
 <p>
 Here we are in 3D. 
 
-<IMG src="../../../../../April13/img/quad-seagull.png"></center></td>
+<IMG src="../../../../../April13/img/quad-seagull.png">
 
 We see quad meshes flying rapidly over a terrain model.
 Additionally, we see the mesh at two levels of detail.  
-«<em>In a world of devices ranging from smartphones, over tablets,
-to workstations with huge screens, multi resolution algorithms are key!</em>»
-according to Mark, and he added  «<em>As Samsung Maps  and Huawei Maps also enter 
+``<em>In a world of devices ranging from smartphones, over tablets,
+to workstations with huge screens, multi resolution algorithms are key!</em>''
+according to Mark, and he added  ``<em>As Samsung Maps  and Huawei Maps also enter 
 the market of GIS for the masses, a logo with a terrain model, makes 
-absolute sense for a geometry library like CGAL.»</em>
+absolute sense for a geometry library like CGAL.</em>''
 </p>
 
 <p>
 If CGAL was only 2D algorithms this tangram would have worked too.
-«<em>The fact that it is composed of basic shapes which can be recombined
-in an unlimited number of ways captures the essence of CGAL.</em>» Mark said. </td>
+``<em>The fact that it is composed of basic shapes which can be recombined
+in an unlimited number of ways captures the essence of CGAL.</em>'' Mark said. 
 </p>
 
 <IMG src="../../../../../April13/img/tangram-seagull.png">