Fix braces bug in manual.

doc/org.texi

@@ -8822,7 +8822,7 @@ the object with @code{\ref@{tab:basic-data@}}:
 
 Optionally, the caption can take the form:
 @example
-#+CAPTION: [Caption for list of figures]{Caption for table (or link).}
+#+CAPTION: [Caption for list of figures]@{Caption for table (or link).@}
 @end example
 
 @cindex inlined images, markup rules