add configs for pandoc

pandoc_config/images.lua

@@ -0,0 +1,6 @@
+function Image (img)
+  if img.src:sub(1,1) == '/' then
+    img.src = os.getenv 'WEBROOT' .. img.src
+  end
+  return img
+end

pandoc_config/styles.tex

@@ -0,0 +1,26 @@
+% Contents of listings-setup.tex
+\usepackage{xcolor}
+\usepackage{fontspec}
+
+\lstset {
+    basicstyle=\ttfamily,
+    numbers=left,
+    keywordstyle=\color[rgb]{0.13,0.29,0.53}\bfseries,
+    stringstyle=\color[rgb]{0.31,0.60,0.02},
+    commentstyle=\color[rgb]{0.56,0.35,0.01}\itshape,
+    numberstyle=\footnotesize,
+    stepnumber=1,
+    numbersep=5pt,
+    backgroundcolor=\color[RGB]{248,248,248},
+    showspaces=false,
+    showstringspaces=false,
+    showtabs=false,
+    tabsize=2,
+    captionpos=b,
+    breaklines=true,
+    breakatwhitespace=true,
+    breakautoindent=true,
+    escapeinside={\%*}{*)},
+    linewidth=\textwidth,
+    basewidth=0.5em,
+    }