[Bengali] Corrections to the history section

As suggested by Sankarshan in mailing list
https://groups.google.com/d/topic/indicfontbook/GJ1qlu4_quQ/discussion

Chapters/Bengali.tex

@@ -5,11 +5,15 @@ \section{Reference fonts}
 
 \subsection{Lohit Bengali}
 
-Lohit Bengali font is consider as most popular Bengali font in India.
+Lohit Bengali is one of the popular fonts for Bengali.
 
 \subsection{History}
-In 2004, Red Hat released five Indian language fonts as open source licensed
-under the GPL. In 2011, Red Hat relicensed fonts under SIL OFL 1.1 license.
+In 2004, Red Hat released five fonts for the Indian language under GPL 2.
+The fonts were originally developed by Modular Infotech
+\footnote{Modular Infotech \url{http://www.modular-infotech.com/}}.
+In 2011, Red Hat relicensed fonts under SIL OFL 1.1 license
+\footnote{License change announcement of Lohit fonts
+\url{https://www.redhat.com/archives/lohit-devel-list/2011-September/msg00000.html}}.
 The fonts named Lohit which means Red in Sanskrit. Currently, the font family
 supports 21 Indian languages: Assamese, Bengali, Devanagari (Hindi, Kashmiri,
 Konkani, Maithili, Marathi, Nepali, Sindhi, Santali, Bodo, Dogri), Gujarati,