add help function, moving readme help content to help function

README.org

@@ -26,11 +26,7 @@ installed linux packages as requirements inside =sripts/install.sh=.
 :CUSTOM_ID: packages
 :END:
 General key bindings and functions
-- =M->= (=end-of-buffer=)
-- =M-<= (=begin-of-buffer=)
-- =C-x b= (=counsel-switch-buffer=)
 - =C-x |= (=toggle-window-split=) toggle horizontal/vertical of 2 window split
-- =C-x h= (=mark-whole-buffer=)
 - =C-x TAB= (=indent-rigidly=) indent lines in the region
 - =C-r= (=query-replace-regexp=) replace text
 - =M-<up>= (=move-line-up=)
@@ -38,12 +34,6 @@ General key bindings and functions
 - =C-x RET f= (=set-buffer-file-coding-system=) e.g. set to =utf-8
 - (=decode-coding-region=) e.g. decode to =utf-8= (郭富城Aaron Kwok)
 - (=diff-buffer-with-file=) show a diff between buffer (current state) and file (saved state)
-- =C-h f= (=helpful-callable=)
-- =C-h v= (=helpful-variable=)
-- =mouse-6= scroll right
-- =mouse-7= scroll left
-- =mouse-8= (=previous-buffer=)
-- =mouse-9= (=next-buffer=)
 
 Spelling (flyspell ispell) bindings and functions
 - (=flyspell-mode=) toggle spelling
@@ -54,24 +44,6 @@ Spelling (flyspell ispell) bindings and functions
 :PROPERTIES:
 :CUSTOM_ID: org
 :END:
-Org key bindings and functions
-- =C-c |= (=org-table-create-or-convert-from-region=) convert seperator 1. TAB, 2. comma, 3. space
-- =C-u C-c |= (=org-table-create-or-convert-from-region=) convert using comma (CSV) seperator
-- =C-u C-u C-c |= (=org-table-create-or-convert-from-region=) convert using TAB
-- =C-u <integer> C-c |= (=org-table-create-or-convert-from-region=) convert using N spaces
-- =C-u REGEX C-c |= (=org-table-create-or-convert-from-region=) convert using regex to match seperator
-- =C-c C-x \= (=org-toggle-pretty-entries=) e.g. displays =\pm= as ±
-
-Org table
-- =S-<right>= (=org-shiftright=) move cell right
-- =S-<left>= (=org-shiftleft=) move cell left
-- =S-<up>= (=org-shiftup=) move cell up
-- =S-<down>= (=org-shiftdown=) move cell down
-- (=org-table-blank-field=) clear cell
-
-Org src block
-- =C-c C-v t= (=org-babel-tangle=) create a file with the content of the block; use in =header:= =:tangle filename=
-
 Org export
 - =<f5>= (=my-org-export-html=)
 - =<f6>= (=my-org-export-pdf=)
@@ -84,15 +56,6 @@ Org export
 - =C-c C-e l a= (=my-org-article-latex-export-to-pdf=) PDF-article file, see also Article export
 - =C-c C-e l t= (=my-org-article-latex-export-to-letter=) PDF-letter file
 
-*Important*
-- For *Gnuplot* source blocks: Do not use =%= inside Gnuplot source
-  block but =\%= or in format command =\%%=
-  - % starts a comment in LaTeX and therefore stops further
-    interpretations like a closing bracket =}= etc.
-    - Gnuplot graphics are imported as .tex (text, axis, legend) and
-      .eps (figure) files.
-  - =\%= =\%%= can also be used for HTML SVG export
-
 *** Template for an article export (HTML and LaTeX)
 :PROPERTIES:
 :CUSTOM_ID: export-article