[gbrainy/difficulty] Update help

[Jordi Mas <jmas src gnome org>]

commit 07111b2715f03461ef1f25aca44e65dcf1fbc92d
Author: Jordi Mas <jmas softcatala org>
Date:   Sat Sep 3 19:57:52 2022 +0200

    Update help

 help/C/difficulty.page | 40 ----------------------------------------
 help/C/export.page     |  2 +-
 help/C/gameplay.page   |  7 +++----
 help/C/score.page      | 24 ++++--------------------
 4 files changed, 8 insertions(+), 65 deletions(-)
---
diff --git a/help/C/export.page b/help/C/export.page
index 6ff7a87d..ce881f87 100644
--- a/help/C/export.page
+++ b/help/C/export.page
@@ -36,7 +36,7 @@
     </item>
     <item>
       <p>
-        Select the type of games, the difficulty level, and how many games to export.
+        Select the type of games and how many games to export.
         When done click <gui style="button">Save</gui>.
       </p>
     </item>
diff --git a/help/C/gameplay.page b/help/C/gameplay.page
index c9ff87df..b17c5f37 100644
--- a/help/C/gameplay.page
+++ b/help/C/gameplay.page
@@ -24,13 +24,12 @@
    your brain trained. 
   </p>
   <p>
-   It features different game types like logic puzzles, mental calculation games, 
+   It features different game types like logic puzzles, mental calculation games,
    memory trainers and verbal analogies, designed to test different cognitive skills.
   </p>
   <p>
-    You can choose different difficulty levels making <app>gbrainy</app> 
-    enjoyable for kids, adults or senior citizens. It also features a game history, 
-    personal records, tips and fullscreen mode support. <app>gbrainy</app> can also 
+    <app>gbrainy</app> is enjoyable for kids, adults or senior citizens. It also features a game
+    history, personal records, tips and fullscreen mode support. <app>gbrainy</app> can also
     be <link href="https://wiki.gnome.org/Apps/gbrainy/Extending";>extended</link> easily 
     with new games developed by third parties.
   </p>
diff --git a/help/C/score.page b/help/C/score.page
index 6fe99266..a9d83ed6 100644
--- a/help/C/score.page
+++ b/help/C/score.page
@@ -26,42 +26,32 @@
   </p>
   <p>
     The following table summarizes the different game durations (in seconds) based
-    on the difficulty level.
+    on the game type.
   </p>
   <table frame="all" rules="all">
     <tr>
       <td><p></p></td>
-      <td><p>Easy</p></td>
-      <td><p>Medium</p></td>
-      <td><p>Master</p></td>
+      <td><p>Time</p></td>
     </tr>
     <tr>
       <td><p>Logic puzzles</p></td>
-      <td><p>156</p></td>
       <td><p>120</p></td>
-      <td><p>110</p></td>
     </tr>
     <tr>
       <td><p>Mental calculation</p></td>
-      <td><p>78</p></td>
       <td><p>60</p></td>
-      <td><p>55</p></td>
     </tr>
     <tr>
       <td><p>Memory trainers</p></td>
-      <td><p>39</p></td>
       <td><p>30</p></td>
-      <td><p>27</p></td>
     </tr>
     <tr>
       <td><p>Verbal analogies</p></td>
-      <td><p>39</p></td>
       <td><p>30</p></td>
-      <td><p>27</p></td>
     </tr>
   </table>
   <p>
-    With the expected time for the chosen difficulty level and the time you
+    With the expected time for the game and the time you
     take to complete the game, the following logic is applied:
   </p>
   <list>
@@ -99,14 +89,8 @@
     <p>
       <app>gbrainy</app> keeps track of the different games types played. To compute
       the final score of every set of game types it sums all the results of the 
-      same game types played and then applies a factor based on: the logarithm of 
-      10 for the easy level; on the logarithm of 20 for the medium level; and 
-      on the logarithm of 30 for the master level.
+      same game types played and then applies a factor based on on the logarithm of 20.
     </p>
-         <p>
-           This means that when playing at medium difficulty level, to get a score of 
-           100 points you need to score 10 points on at least 20 games of every game type played.
-         </p>
          <p>
            This may sound challenging, but it allows players to compare game scores from 
            different sessions (in the player's game history) and allows better tracking of