Update RELEASE_NOTES.md

RELEASE_NOTES.md

@@ -70,7 +70,7 @@ Release Notes v1.0
 ===
 
 ### Objectives: *MIT License Preservation, Rebranding*
-The objective of this release is to establish a version of the Mongoose software distribution thate still retains the MIT license.
+The objective of this release is to establish a version of the Mongoose software distribution that still retains the MIT license.
 
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