Update json.md

removed period from end of section header
diff --git a/working-with-data/loading-external-data/json.md b/working-with-data/loading-external-data/json.md
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--- a/working-with-data/loading-external-data/json.md
+++ b/working-with-data/loading-external-data/json.md
@@ -26,7 +26,7 @@
 
 JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language Standard ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python.
 
-## About [JSON](https://www.json.org){:target='_blank'} implementation in Royale.
+## About [JSON](https://www.json.org){:target='_blank'} implementation in Royale
 
 *information coming soon.*