Minor fix to rst table generation.

Updated format_simple_table to take headers into account when
calculating column widths. Also updated docs where it currently used.

doc/source/instrumentation_method_map.rst

@@ -61,13 +61,13 @@ Instrument method realive to other callbacks registered for the signal (within t
 level, callbacks are invoked in the order they were registered). The table below shows the mapping
 of the prifix to the corresponding priority:
 
-=========== ===
+=========== ========
 prefix      priority
-=========== ===
-very_fast\_  20
-fast\_       10
-normal\_      0
-slow\_      -10
-very_slow\_ -20
-=========== ===
+=========== ========
+very_fast\_       20
+fast\_            10
+normal\_           0
+slow\_           -10
+very_slow\_      -20
+=========== ========
 

wlauto/utils/doc.py

@@ -174,6 +174,8 @@ def format_simple_table(rows, headers=None, align='>', show_borders=True, border
 
     cols = zip(*rows)
     col_widths = [max(map(len, c)) for c in cols]
+    if headers:
+        col_widths = [max(len(h), cw) for h, cw in zip(headers, col_widths)]
     row_format = ' '.join(['{:%s%s}' % (align[i], w) for i, w in enumerate(col_widths)])
     row_format += '\n'