Fix typo

docs/source/program/c.rst

@@ -43,7 +43,7 @@ As on an Arduino, GPIOs can be used as input or output, to receive or send logic
 
 The `pi` variable then represents the esieabot entity. To interrupt the connection with the pigpiod service, use the following function at the end of the program:
 
-. code-block:: C
+.. code-block:: C
 
     pigpio_stop(pi);
 

docs/source/program/esieabot-ai.rst

 esieabot-ai
 ===========
 
-.. image:: esieabot-ai.png
+.. image:: esieabot-ai.jpg
     :width: 400
     :align: center