fixed some typos

diff --git a/helm/software/matita/help/C/sec_install.xml b/helm/software/matita/help/C/sec_install.xml
index 1582965c58e941a04a0a17d77551e7568cb490d9..92e9d62cc178812ca621194e31b49dd40b8e2903 100644 (file)
--- a/helm/software/matita/help/C/sec_install.xml
+++ b/helm/software/matita/help/C/sec_install.xml
@@ -110,8 +110,8 @@
                  The virtual machine &appname; will run on, has its own file 
                  system, that is completely separated from the one of your 
                  real PC (thus your files are not available in the
-                 emulated environment) and moreover it is a non-presistem
-                 file system (thus you data is lost every time yuo
+                 emulated environment) and moreover it is a non-presistent
+                 file system (thus you data is lost every time you
                  turn off the virtual machine).
           </para>
           <para>
@@ -136,7 +136,7 @@
             </mediaobject>
           </figure>
          <para>
-                 The you shuld add a shared folder clicking on the 
+                 Then you shuld add a shared folder clicking on the 
                  plus icon on the right
          </para>
           <figure><title>Choosing the folder to share</title>
@@ -149,7 +149,7 @@
             </mediaobject>
           </figure>
          <para>
-                 The you have to specify the real PC folder you want to share
+                 Then you have to specify the real PC folder you want to share
                  and name it. A reasonable folder to share is /home on 
                  a standard Unix system, while /Users on MaxOSX.
                  The name you give to the share is important, you should