Fixes typo

README.md

@@ -11,7 +11,7 @@ The source code authored by us in this repo is licensed under the Apache v2. The
 
 The JGraph provided icons and diagram templates are licensed under the [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Additional terms may also apply where the icons are originally defined by a third-party copyright holder. We have checked in all cases that the original license allows use in this project. Also see the terms for using the draw.io logo below.
 
-Additional minified JavaScript files and Java libraries are used in this project. All of the licenses are deemed compatible with the Apache 2.0, nothing is GPL or AGPL, due dilgence is performed on all third-party code.
+Additional minified JavaScript files and Java libraries are used in this project. All of the licenses are deemed compatible with the Apache 2.0, nothing is GPL or AGPL, due diligence is performed on all third-party code.
 
 We make no copyright claim on the content you create with this software, regardless of the copyright of individual icons used in such content.
 
@@ -58,4 +58,4 @@ Do not use any draw.io logo as the icon or logo for your business/organization,
 
 Do not modify the permitted draw.io logos, including changing the color, dimensions, or combining with other words or design elements.
 
-Do not use JGraph trademarks or logos without JGraph’s prior written permission.
+Do not use JGraph trademarks or logos without JGraph’s prior written permission.