Fix overlay docs.
Fix a bug in the overlay docs so that the example is syntactically valid.
Fixes
@@ -589,7 +589,7 @@ Reference
Overlay section size. This is 0 for PE files that don't have overlaid
data and undefined for non-PE files.
- *Example: uint8(0x0d) at pe.overlay.offset and pe.overlay.size > 1024*
+ *Example: uint8(pe.overlay.offset) == 0x0d and pe.overlay.size > 1024*
.. c:type:: number_of_resources
