update doc

doc/html/66-tree.html

@@ -80,9 +80,9 @@
 	 
      <li> 
 		<tt>-S&nbsp;<em>after_tree</em></tt>&nbsp;: Start the <em>tree</em> after <em>after_tree</em>. 
-        This tell to <a href="66-all.html">66-all</a> the specific order to apply at start process. 
-        <em>after_tree</em> must be already enabled. You can combine this options directly 
-        with the <tt>-E</tt> option at creation time.
+        This tells <a href="66-all.html">66-all</a> the specific order to apply at start process. 
+        <em>after_tree</em> and <em>tree</em> must be already enabled. You can combine this options directly 
+        with the <tt>-E</tt> option at tree creation time.
 	 </li>
      
 	 <li> 

doc/man/66-tree.1.scd

@@ -60,9 +60,9 @@ what trees are currently available on the system use the *66-intree*(1) tool.
 	default. You can see which _tree_ is the current one with the *66-intree*(1) tool.
 
 *-S*
-	Start the _tree_ after _after_tree_. This tell to *66-all*(1) the specific
-	order to apply at start process. _after_tree_ must be already enabled.
-	You can combine this options directly with the *-E* option at creation time.
+	Start the _tree_ after _after_tree_. This tells *66-all*(1) the specific
+	order to apply at start process. _after_tree_ and _tree_ must be already enabled.
+	You can combine this options directly with the *-E* option at tree creation time.
 
 *-E*
 	Enables _tree_. This allows the *66-all*(1) tool to know which tree needs to