modified some explanations in app.html

demos/app.html

@@ -25,9 +25,17 @@ Or try first a
 
 
 <p>
-The Human Language Compiler is a translator for human language based on
-programming language technology. Therefore it is compact in size
-and gives control on quality. It indicates confidence with colours:
+The Human Language Compiler differs from other translation
+systems that are currently available, by using grammars and
+semantics to perform the translation. Other systems use either
+statistics or shallow rules based on dictionary lookup. Our
+technology is similar to the way in which a compiler translates
+program code to machine code - hence the name of our system.
+
+<p>
+
+The technology enables the system to be compact in size
+and give control on quality. It indicates confidence with colours:
 <ul>
 		<li><b>Green</b>:
                  semantic translation, should be correct.
@@ -35,7 +43,9 @@ and gives control on quality. It indicates confidence with colours:
                 </li>
 		<li><b>Yellow</b>:
                  syntactic translation, should be grammatically correct.
-                 But can be very strange in its interpretation and choice of words.
+                 But can be very strange in its interpretation and
+		choice of words; there can also be bugs in word
+		inflection and genders.
                 </li>
 		<li><b>Light red</b>:
                  chunk translation, probably incorrect.
@@ -97,8 +107,8 @@ To activate it go to Settings > Language &amp; input.
 <p>
 The Human Languge Compiler works <b>completely off-line</b>, without
 internet connection, although being on-line may give you better
-speech input and output.
-The app is small (around 23 MB for all languages).
+speech input and output and enable it for more languages.
+The app is small (around 24 MB for all languages).
 We do not show ads.
 </p>