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Update README.org (#15657)

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@ -42,31 +42,41 @@ For example, the following diagram can be defined as follows:
- Controlling the =Plantuml= compiler directly from emacs
* Install
To use this contribution add it to your =~/.spacemacs=
To use this contribution, add it to your =~/.spacemacs=
#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers '(plantuml))
#+END_SRC
To control the =Plantuml= compiler you also need to download the [[http://plantuml.com/download][Plantuml jar]]
and configure the =plantuml-jar-path= respectively:
** Execution modes
Configure plantuml-mode to either make use of a =Plantuml= library, executable or server (experimental).
If you want to call your local Plantuml library, set =plantuml-jar-path= and =plantuml-default-exec-mode= as follows:
#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers '((plantuml :variables plantuml-jar-path "~/plantUml.jar")))
(setq-default dotspacemacs-configuration-layers '((plantuml :variables
plantuml-jar-path "~/plantUml.jar"
plantuml-default-exec-mode 'library)))
#+END_SRC
For this to work, you need to execute =plantuml-download-jar= to download the most recent =Plantuml= library jar to your home directory.
If instead you want to call your local Plantuml executable (f.e. as installed to path =/usr/bin/plantuml= by your package manager), set =plantuml-executable-path= and =plantuml-default-exec-mode= as follows:
#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers '((plantuml :variables
plantuml-executable-path "/usr/bin/plantuml"
plantuml-default-exec-mode 'executable)))
#+END_SRC
To get the full range of =Plantuml= compilations working, you will also need
the native package [[http://graphviz.org/][graphviz]] installed on your system.
If you don't want to compile locally you can set =plantuml-exec-mode= to =server=.
This will make plantuml try to use an online compile server. Be warned these resources
change often and plantuml-mode is not always up-to-date. For a stable user experience
we recommend using the default jar option instead.
If instead you don't want to compile locally, you can set =plantuml-exec-mode= to =server=.
This will make plantuml try to use an online compile server. Be warned that this feature is experimental.
#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers '((plantuml :variables plantuml-default-exec-mode 'server)))
#+END_SRC
Either way, to get the full range of =Plantuml= compilations working, you will also need
the native package [[http://graphviz.org/][graphviz]] installed on your system.
* Org-Babel Integration
To enable the execution of embedded plantuml code blocks within [[http://orgmode.org/][Org-Mode]]
documents, define a value for =org-plantuml-jar-path= in your =~/.spacemacs=: