UserGuide.lyx: ad info for spell checkers under Linux

- patch by Ignacio

lib/doc/UserGuide.lyx

@@ -32179,7 +32179,7 @@ There are 2
 \end_inset
 
 files for each language.
- To install a dictionary, copy the 2
+ To install a dictionary on Windows, copy the 2
 \begin_inset space ~
 \end_inset
 
@@ -32192,6 +32192,28 @@ Resources
 dicts
 \family default
  and restart LyX.
+\begin_inset Newline newline
+\end_inset
+
+With Linux one needs to install the packages for the desired language.
+ The number of these packages vary depending on the Linux distribution,
+ but in most cases these are 
+\family typewriter
+aspell-xx
+\family default
+, 
+\family typewriter
+hunspell-xx
+\family default
+,
+\family typewriter
+ myspell-xx
+\family default
+, etc., where 
+\family sans
+xx
+\family default
+ is the language code.
 \end_layout
 
 \begin_layout Subsection

lib/doc/de/UserGuide.lyx

@@ -32793,8 +32793,8 @@ Es gibt 2
 \end_inset
 
 Dateien für jede Sprache.
- Um ein Wörterbuch zu installieren, kopiert man beide Dateien in LyXs Installati
+ Um ein Wörterbuch unter Windows zu installieren, kopiert man beide Dateien
-onsunterordner 
+ in LyXs Installationsunterordner 
 \family sans
 ~
 \backslash
@@ -32803,6 +32803,20 @@ Resources
 dicts
 \family default
  und startet LyX neu.
+\begin_inset Newline newline
+\end_inset
+
+Unter Linux muss man die Pakete für die gewünschte Sprache installieren.
+ Die Anzahl der Pakete schwankt je nach Linux-Distribution, aber in den
+ meisten fällen sind das 
+\family sans
+aspell-xx, hunspell-xx, myspell-xx
+\family default
+, usw., wobei 
+\family sans
+xx
+\family default
+ der Code für die Sprache ist.
 \end_layout
 
 \begin_layout Subsection

lib/doc/fr/UserGuide.lyx

@@ -33589,8 +33589,8 @@ http://sourceforge.net/projects/lyxwininstaller/files/hunspell/
 \end_inset
 
 Il y a deux fichiers par langue.
- Pour installer un dictionnaire, copier ces deux fichiers dans le sous-répertoir
+ Pour installer un dictionnaire avec Windows, copier ces deux fichiers dans
-e 
+ le sous-répertoire 
 \family sans
 ~
 \backslash
@@ -33599,6 +33599,22 @@ Resources
 dicts
 \family default
  et redémarrez LyX.
+\begin_inset Newline newline
+\end_inset
+
+
+\lang english
+With Linux one needs to install the packages for the desired language.
+ The number of these packages vary depending on the Linux distribution,
+ but in most cases these are 
+\family sans
+aspell-xx, hunspell-xx, myspell-xx
+\family default
+, etc., where 
+\family sans
+xx
+\family default
+ is the language code.
 \end_layout
 
 \begin_layout Subsection

lib/doc/ja/UserGuide.lyx

@@ -26343,7 +26343,7 @@ There are 2
 \end_inset
 
 files for each language.
- To install a dictionary, copy the 2
+ To install a dictionary on Windows, copy the 2
 \begin_inset space ~
 \end_inset
 
@@ -26356,6 +26356,20 @@ Resources
 dicts
 \family default
  and restart LyX.
+\begin_inset Newline newline
+\end_inset
+
+With Linux one needs to install the packages for the desired language.
+ The number of these packages vary depending on the Linux distribution,
+ but in most cases these are 
+\family sans
+aspell-xx, hunspell-xx, myspell-xx
+\family default
+, etc., where 
+\family sans
+xx
+\family default
+ is the language code.
 \end_layout
 
 \begin_layout Subsection