[DOC] Mismatch on doc regarding position of src block switches

[João Pedro]

Hi Org folks,

I've noticed that in (org)Literal Examples[0], when documenting the switches 
for example and source blocks, it is mentioned that they should be placed at 
the *end* of the #+BEGIN line, while both in (org)Structure of Code Blocks[1] 
and the Org Syntax document[2] the switches are documented to be placed right 
after the language (when appropriate), which is the correct placement for it.

I've also noticed that the Org Syntax for blocks (greater or lesser) don't 
mention example blocks having optional switches.

[0] https://orgmode.org/manual/Literal-Examples.html
[1] https://orgmode.org/manual/Structure-of-Code-Blocks.html
[2] https://orgmode.org/worg/org-syntax.html#Blocks

Cheers,

-- 
João Pedro de A. Paula
IT bachelors at Universidade Federal do Rio Grande do Norte (UFRN)