Take into account suggestions of Alexiane

doc/userdoc.org

@@ -433,7 +433,7 @@ change of type in its lifetime.
 
 **** Declaration of simple variables
 
-To declare a variable ~v~ of a given type ~V~, one writes
+To declare a variable ~v~ of a given type ~V~, one simply writes
 #+BEGIN_SRC pugs :exports source
   let v:V;
 #+END_SRC
@@ -475,7 +475,7 @@ already been /declared/, one writes simply
 #+BEGIN_SRC pugs :exports source
   v = expression;
 #+END_SRC
-There is not to much to comment, reading is quite natural
+There is not too much to comment, reading is quite natural
 - ~v~ is the variable name,
 - ~=~ is the affectation operator,
 - ~expression~ is some code that provides a value of the same type as ~v~