SF #894428, fix typo

Doc/ext/embedding.tex

@@ -131,7 +131,7 @@ chapters for the required information.
 The first program aims to execute a function in a Python
 script. Like in the section about the very high level interface,
 the Python interpreter does not directly interact with the
-application (but that will change in th next section).
+application (but that will change in the next section).
 
 The code to run a function defined in a Python script is: