chore(docs): grammar improvements

Author: stainless-app[bot]

SECURITY.md

@@ -16,11 +16,11 @@ before making any information public.
 ## Reporting Non-SDK Related Security Issues
 
 If you encounter security issues that are not directly related to SDKs but pertain to the services
-or products provided by Grid please follow the respective company's security reporting guidelines.
+or products provided by Grid, please follow the respective company's security reporting guidelines.
 
 ### Grid Terms and Policies
 
-Please contact info@grid.is for any questions or concerns regarding security of our services.
+Please contact info@grid.is for any questions or concerns regarding the security of our services.
 
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