Added a remark

Daniel Lemire · Daniel Lemire · commit be707dbb6ffd · 2020-06-12T16:07:34.000-04:00
diff --git a/doc/basics.md b/doc/basics.md
@@ -186,6 +186,7 @@ In some cases, you may have valid JSON strings that you do not wish to parse but
   // The buffer variable now has "[1,2,3,4]" and new_length has value 9.
 ```
 
+Though it does not validate the JSON input, it will detect when the document ends with an unterminated string. E.g., it would refuse to minify the string `"this string is not terminated` because of the missing final quote.
 
 C++17 Support
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