Update 1 1 introduction

1-1-introduction.md

 # Introduction
 
-Mirae WAVE is a light-weight, easy-to-use 3D visualization tool with rich professional-level feature sets for data analyses, that can handle large grid datasets used by meteorologists, atmospheric scientists and oceanologists. 
+Mirae WAVE is a light-weight, easy-to-use 3D visualization tool with rich professional-level feature sets for data analysis, that can handle large grid datasets used by meteorologists, atmospheric scientists and oceanologists. 
 
 ![alt](img/1-1-intro-animated.gif)
 
@@ -23,7 +23,7 @@ Anyone can download and install Mirae WAVE without any cost, and try it free for
 
 Mirae WAVE was originally developed for the meteorologists in Korea Meteorological Administration (KMA), in order to help them to analyze NWP model data and to make better weather forecast. A variant of Mirae WAVE, named 'GloView', has been used for analyses on daily basis in the numerical forecast department of KMA for many years.
 
-Mirae WAVE was mainly developed for the researchers and specialists, who works for meteorological administrations, public or private research organizations, broadcast and other companies in weather forecast industries, etc. It provides high-quality graphics and imageries comparable to the results of expensive tools used in some weather forecasting companies and TV stations, at a very low cost. Its easy-to-use interface and simple workflow also allow users to use Mirae WAVE for educational purposes.
+Mirae WAVE was mainly developed for the researchers and specialists, who works for meteorological administrations, public or private research organizations, broadcast and other companies in weather forecast industries, and academic researchs. It provides high-quality graphics and imageries comparable to the results of expensive tools used in some weather forecasting companies and TV stations, at a very low cost. Its easy-to-use interface and simple workflow also allow users to use Mirae WAVE for educational purposes.
 
 ### System Requirements