Update placeholder values for text boxes

index.html

@@ -34,7 +34,7 @@ <h3>Tool for converting a GrooveScribe drum notation for embedding in <a href="h
       <input type="text" id="url" name="url"><br><br>
 
       <label for="subText">Sub Text:</label>
-      <input type="text" id="subText" name="subText" placeholder="chorus (8 bars)"><br><br>
+      <input type="text" id="subText" name="subText" placeholder="Chorus (can also be lyric hints)"><br><br>
 
       <label for="repeatBegins">Begin repeat at measures (separated by ;):</label>
       <input type="text" id="repeatBegins" name="repeatBegins" placeholder="1;3"><br><br>
@@ -45,7 +45,7 @@ <h3>Tool for converting a GrooveScribe drum notation for embedding in <a href="h
       <label for="repeatEndings">Alternate endings at measures (separated by ;):</label>
       <input type="text" id="repeatEndings" name="repeatEndings" placeholder="2:1;3:2"><br><br>
 
-      <label for="measureText">Text at begin or end of measure (separated by ;):</label>
+      <label for="measureText">Text at begin or end of specific measures(separated by ;):</label>
       <input type="text" id="measureText" name="measureText" placeholder="1:b:start here;2:e:end here"><br><br>
 
       <label for="showTempo">Show Tempo</label>