tweaks: reword the description of the disadvantages of Pico

Also reword a list of features to exclude the ones that only
make sense when contrasting nano with Pico.

README

@@ -7,11 +7,11 @@ Overview
     wonderfully easy-to-use and friendly Pico text editor.
 
     First and foremost was its license: the Pine suite does not use
-    the GPL or a GPL-friendly license, and has unclear restrictions on
-    redistribution.  Because of this, Pine and Pico are not included
-    with many GNU/Linux distributions.  Also, other features (like
-    go-to-line-number or search-and-replace) were unavailable until
-    recently or require a command-line flag.  Yuck.
+    the GPL, and (before using the Apache License) it had unclear
+    restrictions on redistribution.  Because of this, Pine and Pico
+    were not included in many GNU/Linux distributions.  Furthermore,
+    some features (like go-to-line-number or search-and-replace) were
+    unavailable for a long time or require a command-line flag.  Yuck.
 
     Nano aimed to solve these problems by: 1) being truly free software
     by using the GPL, 2) emulating the functionality of Pico as closely

doc/nano.texi

@@ -84,11 +84,11 @@ This manual documents the GNU @command{nano} editor, version 3.2.
 @node Introduction
 @chapter Introduction
 
-GNU @command{nano} is a small and friendly text editor.  Besides basic text
-editing, @command{nano} offers many extra features, such as an interactive
-search-and-replace, undo/redo, syntax coloring, smooth scrolling,
-auto-indentation, go-to-line-and-column-number, feature toggles,
-file locking, backup files, and internationalization support.
+GNU @command{nano} is a small and friendly text editor.  Besides
+basic text editing, @command{nano} offers features like undo/redo,
+syntax coloring, interactive search-and-replace, auto-indentation,
+line numbers, word completion, file locking, backup files, and
+internationalization support.
 
 The original goal for @command{nano} was to be a complete bug-for-bug
 emulation of Pico.  But currently the goal is to be as compatible