Fixed Mystic Theurge marker feat bug

Fixed Mystic Theurge marker feat bug.  Fixed Thrall of Orcus marker feat bug.

nwn/nwnprc/trunk/tlk/prc8_consortium.tlk.xml

@@ -58502,7 +58502,7 @@ Use: Automatic</entry>
   <entry id="61013" lang="en" sex="m">Shield Specialization (Heavy)</entry>
   <entry id="61014" lang="en" sex="m">Type of Feat: General
 Prerequisites: Shield proficiency
-Benefit: When using a shield of the appropriate type, you increase its shield bonus to AC by 1.  The heavy sheild version of this feat does not work with tower shields.
+Benefit: When using a shield of the appropriate type, you increase its shield bonus to AC by 1.  The heavy shield version of this feat does not work with tower shields.
 Use: Automatic</entry>
   <entry id="61015" lang="en" sex="m">Shield Ward</entry>
   <entry id="61016" lang="en" sex="m">Type of Feat: General