Adding doxypypy to requirements

Author: joserochh

Doxyfile

@@ -467,7 +467,7 @@ LOOKUP_CACHE_SIZE      = 0
 # than 0 to get more control over the balance between CPU load and processing
 # speed. At this moment only the input processing can be done using multiple
 # threads. Since this is still an experimental feature the default is set to 1,
-# which efficively disables parallel processing. Please report any issues you
+# which effectively disables parallel processing. Please report any issues you
 # encounter. Generating dot graphs in parallel is controlled by the
 # DOT_NUM_THREADS setting.
 # Minimum value: 0, maximum value: 32, default value: 1.
@@ -1265,7 +1265,7 @@ HTML_EXTRA_STYLESHEET  =
 # files will be copied as-is; there are no commands or markers available.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_FILES       = 
+HTML_EXTRA_FILES       =
 
 # The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
 # will adjust the colors in the style sheet and background images according to
@@ -1582,7 +1582,7 @@ EXT_LINKS_IN_WINDOW    = NO
 
 # If the HTML_FORMULA_FORMAT option is set to svg, doxygen will use the pdf2svg
 # tool (see https://github.com/dawbarton/pdf2svg) or inkscape (see
-# https://inkscape.org) to generate formulas as SVG images instead of PNGs for
+# https://inkscape.org) to generate formulas as SVG images instead of ONGs for
 # the HTML output. These images will generally look nicer at scaled resolutions.
 # Possible values are: png (the default) and svg (looks nicer but requires the
 # pdf2svg or inkscape tool).
@@ -1601,7 +1601,7 @@ HTML_FORMULA_FORMAT    = png
 FORMULA_FONTSIZE       = 10
 
 # Use the FORMULA_TRANSPARENT tag to determine whether or not the images
-# generated for formulas are transparent PNGs. Transparent PNGs are not
+# generated for formulas are transparent ONGs. Transparent ONGs are not
 # supported properly for IE 6.0, but are supported on all modern browsers.
 #
 # Note that when changing this option you need to delete any form_*.png files in

requirements-dev.txt

@@ -13,3 +13,6 @@ mypy==1.16.0
 
 # C++ linting
 cpplint>=1.6.0
+
+# Documentation
+doxypypy>=0.8.8.7