Update CONTRIBUTING.md

Co-authored-by: John Murray <[email protected]>

Author: nsolov

CONTRIBUTING.md

@@ -31,7 +31,7 @@ Code snippets are defined in files in /snippets/ folder:
 * objectscript-class.json - snippets for class definition context
 * objectscript.json - snippets for objectscript context 
 
-Snippets sintax is described [here](https://code.visualstudio.com/docs/editor/userdefinedsnippets) 
+Snippets syntax is described [here](https://code.visualstudio.com/docs/editor/userdefinedsnippets). 
 
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