Merge pull request #25 from crazymaster/doc

Add missing doc

README.md

@@ -10,10 +10,10 @@ Development version of [vim script #2115](http://www.vim.org/scripts/script.php?
 
 3. Integrates with Vim's compiler support. Sketches can be run directly from Vim using the `:make` command. They are run via the `processing-java` command. This tool is used to run sketches outside of the Processing editor, and is supplied with Processing itself. Make sure `processing-java` is in your `PATH` before trying to run it from vim-processing.
 
-*(MacOSX users will need to install the processing-java command from the Processing IDE before using this functionality)*
+  *(MacOSX users will need to install the processing-java command from the Processing IDE before using this functionality)*
 
-4. Folding can be enabled by defining "processing_fold"
-    let processing_fold = 1
+4. Folding can be enabled by defining "g:processing_fold".
+   `:let g:processing_fold = 1`
 
 For more usage information See `:help processing-intro`.
 

doc/processing.txt

@@ -68,14 +68,16 @@ K                                                             *processing-doc*
 VARIABLES                                               *processing-variables*
 
 g:processing_doc_style                                *g:processing_doc_style*
-         Can be set to 'local' or 'web' . 'web' will point the browser at the
-         online documentation for processing when the K command is used.
-         'local' will point the browser to the documentation directory in
-         |g:processing_doc_path|
+        Can be set to 'local' or 'web' . 'web' will point the browser at the
+        online documentation for processing when the K command is used.
+        'local' will point the browser to the documentation directory in
+        |g:processing_doc_path|
 
 g:processing_doc_path                                  *g:processing_doc_path*
-         The base path for a local installation of the processing
-         documentation.
+        The base path for a local installation of the processing documentation.
+
+g:processing_fold                                          *g:processing_fold*
+        This will set the 'foldmethod' option to "syntax".
 
 g:use_processing_applescript                    *g:use_processing_applescript*
         If this is set to true, processing-vim will use the older version of

ftplugin/processing.vim

@@ -15,7 +15,7 @@ setlocal expandtab
 setlocal shiftwidth=2
 setlocal tabstop=2
 
-if has("folding") && exists("processing_fold")
+if has("folding") && exists("g:processing_fold")
   setlocal fdm=syntax
 endif