Fix minor typo

guide/C/ch_basics.xml

@@ -161,7 +161,7 @@
       <title>Debits and Credits</title>
 
       <para>The use of debits and credits in accounting and their effect on accounts of different types is often
-        confusing when first encountered in acccounting. The accounting equation introduced above is
+        confusing when first encountered in accounting. The accounting equation introduced above is
         the key to understanding which accounts types are debited or credited and when. First of all
         we need to rearrange the expanded form a little bit with Assets on the left hand side of the
         equal sign and transposing any account type with a negative sign to the other side to