Minor fix

Author: fggp

opcodes/bformdec2.xml

@@ -186,11 +186,11 @@
   <refsect1>
 <!--  And put your name and other relevant information here-->
     <title>Credits</title>
-    <para>By: Pablo Zinemanas, Mart??n Rocamora and Luis Jure,
+    <para>By: Pablo Zinemanas, Martín Rocamora and Luis Jure,
     2019. Adapted by John ffitch</para> 
     <para>Based on code from the <ulink url="https://bitbucket.org/ambidecodertoolbox/adt/"><citetitle>Ambisonics Decoder Toolbox</citetitle></ulink> by Aaron J. Heller.</para>
     <para>For more information about the opcode and technical details
-    see: Pablo Zinemanas, Mart??n Rocamora and Luis Jure. Improving
+    see: Pablo Zinemanas, Martín Rocamora and Luis Jure. Improving
     Csound's Ambisonics decoders. Fifth International Csound
     Conference -- ICSC2019. Italy, 2019 -- <ulink
     url="https://csound.com/icsc2019/proceedings/7.pdf"><citetitle>PDF</citetitle></ulink>.</para>