fix links

src/index.html

@@ -134,7 +134,7 @@ <h1>saving</h1>
 [sound]    : A URL to a .json or .mp3 file
            : Blank = off, mic = mic, feedback = mic + speaker,
            : random = random track
-           : <a href="https://github.com/greggman/vertexshaderart.com/">see here for more info.</a>
+           : <a target="_blank" href="https://github.com/greggman/vertexshaderart.com/">see here for more info.</a>
 
 Inputs
 -------------------------------------------------------------
@@ -152,7 +152,7 @@ <h1>saving</h1>
             :           : 240 rows of history (4secs @60fps)
 floatSound  : sampler2D : data from the music Nx240, alpha only
             :           : 240 rows of history (4secs @60fps)
-            :           : <a href="http://webaudio.github.io/web-audio-api/#widl-AnalyserNode-getFloatFrequencyData-void-Float32Array-array">see spec</a> for difference between
+            :           : <a target="_blank" href="http://webaudio.github.io/web-audio-api/#widl-AnalyserNode-getFloatFrequencyData-void-Float32Array-array">see spec</a> for difference between
             :           : getFloatFrequencyData and
             :           : getByteFrenquencyData.
 soundRes    : vec2      : resolution of sound
@@ -184,7 +184,7 @@ <h1>saving</h1>
   WebGL does not seem to be working.
 
   Maybe you need to restart your browser
-  or <a href="http:\\get.webgl.org">get a new one</a>?
+  or <a target="_blank" href="http:\\get.webgl.org">get a new one</a>?
 
     </pre>
   </div>