Fix text

Author: gnovaro

README.md

@@ -4,7 +4,7 @@ PHP SQL Server Admin is a web query tool for Microsoft SQL Server, you can execu
 ## Project page
 https://gnovaro.github.io/sqlserveradmin/
 
-## Instalation
+## Installation
 Inside your document root make a new folder for the project "sqlserveradmin" and edit config.php
 
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