Apply suggestion to doc/user/markdown.md

doc/user/markdown.md

@@ -791,7 +791,7 @@ You can add footnotes to your text as follows.[^1]
 
 You can use letters and other characters in the footnote.[^footnote-note]
 
-[^footnote-note]: Footnote numbers are auto-generated by order, so it doesn't matter what the tag name is.
+[^footnote-note]: Footnote numbers are auto-generated by order, so it does not matter what the tag name is.
 
 ### Headers