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@@ -26,7 +26,10 @@ bifacial_radiance is a national laboratory developed, community-supported open-s
 
 bifacial_radiance is hosted on Github and PyPi, and developed by contributors from national laboratories, academia, and private industry. bifacial_radiance is copyrighted by the Alliance for Sustainable Energy with a BSD 3-clause license allowing permissive use with attribution. bifacial_radiance is extensively tested for functional and algorithm consistency. Continuous integration services check each pull request on multiple platforms and Python versions. The bifacial_radiance API is thoroughly documented, and detailed tutorials are provided for many features. The documentation includes help for installation and guidelines for contributions. The documentation is hosted at readthedocs.org as of this writing. Github’s issue trackers, a google group and StackOverflow tag provide venues for user discussions and help.
 
-![Visualization of a bifacial photovoltaic array generated through bifacial_radiance. Courtesy of J. Alderman.](Alderman.png)
+<figure>
+    <img src='Alderman.png' />
+    <figcaption> Visualization of a bifacial photovoltaic array generated through bifacial_radiance. Courtesy of J. Alderman. </figcaption>
+</figure>
 
 The bifacial_radiance API and graphical user interface (GUI) were designed to serve the various needs of the many subfields of bifacial solar panel power research and engineering. It is implemented in three layers: core RADIANCE-interface functions; ``Bifacial-Radiance``, ``Meteorological``, ``Scene``, and ``Analysis`` classes; and the ``GUI`` and ``model-chain`` classes. The core API consists of a collection of functions that implement commands directly to the RADIANCE software. These commands are typical implementations of algorithms and models described in peer-reviewed publications. The functions provide maximum user flexibility, however some of the function arguments require an unwieldy number of parameters. The next API level contains the ``Bifacial-Radiance``, ``Meteorological``, ``Scene``, and ``Analysis`` classes. These abstractions provide simple methods that wrap the core function API layer and communicate with the RADIANCE software, which provides ray-trace processing capabilities. The method API simplification is achieved by separating the data that represents the object (object attributes) from the data that the object methods operate on (method arguments). For example, a ``Bifacial-Radiance`` object is represented by a ``module`` object, meteorological data, and ``scene`` objects. The ``gendaylit`` method operates on the meteorological data to calculate solar position and generate corresponding sky-files, linking them to the ``Bifacial-Radiance`` object. Then the ``makeOct`` method combines the sky files, ``module`` and ``scene`` objects when calling the function layer, returning the results from an ``Analysis`` object to the user. The final level of API is the ``ModelChain`` class, designed to simplify and standardize the process of stitching together the many modeling steps necessary to convert a time series of weather data to AC solar power generation, given a PV system and a location. The ``ModelChain`` also powers the ``GUI``, which provides a cohesive visualization of all the input parameters and options for most common modeling needs.