org-manual: Fix typo in beamer example

tecosaur · tecosaur · commit ae2140b1e6bf · 2022-09-22T14:48:37.000+08:00
* doc/org-manual.org (Beamer specific syntax): Fix closing keyword of
the beamer export example.
diff --git a/doc/org-manual.org b/doc/org-manual.org
@@ -12538,7 +12538,7 @@ Insert Beamer-specific code using the following constructs:
 
 ,#+BEGIN_EXPORT beamer
   Only Beamer export back-end exports this.
-,#+END_BEAMER
+,#+END_EXPORT
 
 Text @@beamer:some code@@ within a paragraph.
 #+end_example
