diff --git a/docs/JetCore.pdf b/docs/JetCore.pdf
index 9b776e3..d60d536 100644
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diff --git a/docs/JetCore.synctex.gz b/docs/JetCore.synctex.gz
deleted file mode 100644
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diff --git a/docs/JetCore.tex b/docs/JetCore.tex
index af8750c..5a43435 100644
--- a/docs/JetCore.tex
+++ b/docs/JetCore.tex
@@ -1,4 +1,6 @@
 \documentclass{book}
+\usepackage{fontspec}
+\setmainfont{Roboto}
 
 \title{JET Extension Tags}
 \author{Bradford Matthew Arant Sr.}
@@ -166,6 +168,8 @@ operators, as follows:
 
 \section{Date Functions}
 
+\subsection{datediff}
+
 \subsection{unixtime}
 
 \section{Math Functions}
@@ -176,7 +180,7 @@ Returns the absolute value of the given parameter.
 
 \subsection{acos}
 
-Returns to arc-cosine of the given parameter.
+Returns to arc cosine of the given parameter.
 
 \subsection{asin}
 
@@ -208,11 +212,15 @@ Use the random function to return a random number between 0 and 1.
 
 \section{String Functions}
 
-String functions are provided to accelerate the building and parsing of strings passed into the expression. Numbers can be treated as a string or a number depending on the function called and the data state of the values being manipulated. 
+String functions are provided to accelerate the building and parsing of 
+strings passed into the expression. Numbers can be treated as a string or 
+a number depending on the function called and the data state of the values 
+being manipulated. 
 
 \subsection{concat}
 
-The concat function is used to assemble a string by concatenating one or more values to formulate the resulting string. 
+The concat function is used to assemble a string by concatenating one or 
+more values to formulate the resulting string. 
 
 
 
@@ -224,7 +232,7 @@ Use the left function to return the number of characters specified in
 the second parameter from the parameter passed as the first parameter. 
 
 If the number of characters to return is greater than the length of
-the forst parameter then the entire parameter is returned.
+the first parameter then the entire parameter is returned.
 
 \subsection{reverse}
 
@@ -560,4 +568,4 @@ a container to process for each row retrieved by the sql statement.
 
 Use the write tag to write data to the local file system. 
 
-\end{document}
\ No newline at end of file
+\end{document}
diff --git a/docs/missfont.log b/docs/missfont.log
index 8d2bbc6..457d6c6 100644
--- a/docs/missfont.log
+++ b/docs/missfont.log
@@ -24,3 +24,24 @@ mktextfm Bookman
 mktextfm Bookman
 mktextfm Bookman
 mktextfm Bookman
+mktextfm Georgia
+mktextfm Georgia
+mktextfm Georgia
+mktextfm Georgia/BI
+mktextfm Georgia
+mktextfm Georgia/B
+mktextfm Georgia
+mktextfm Georgia/I
+mktextfm Georgia
+mktextfm Georgia
+mktextfm Georgia
+mktextfm Georgia
+mktextfm Georgia
+mktextfm Georgia
+mktextfm Georgia
+mktextfm PadaukBook
+mktextfm PadaukBook
+mktextfm PadaukBook
+mktextfm Gerramond
+mktextfm URWBookman
+mktextfm Bookman