move astyle files to docs and add it's README to CONTRIBUTING.md

README.astyle

@@ -1,18 +0,0 @@
-Use the _astylerc config file and the 'astyle' util to format the
-project source files in  accordance with the project coding style.
-
-At project top level run these commands:
-
-1. To format the .c files:
-    $ find . -type f -name "*.c" | xargs astyle --options=_astylerc-c
- -OR-   (to skip creation of backup files)
-    $ find . -type f -name "*.c" | xargs astyle --options=_astylerc-c -n
-
-2. To format the .h files:
-    $ find . -type f -name "*.h" | xargs astyle --options=_astylerc-h
- -OR-   (to skip creation of backup files)
-    $ find . -type f -name "*.h" | xargs astyle --options=_astylerc-h -n
-
-3. To remove the backup file created by astyle:
-    $ find . -type f -name "*.bak"  -delete     # this are *.c backup files
-    $ find . -type f -name "*.orig" -delete     # this are *.h backup files

docs/CONTRIBUTING.md

@@ -161,3 +161,14 @@ void lv_label_set_text(lv_obj_t * label, const char * text)
 ```
 
 Use 4 spaces indentation instead of tab.
+
+You can use **astyle** to format the code. The required config flies are: `docs/astyle_c` and `docs/astyle_h`.
+To format the header files: 
+ `$ find . -type f -name "*.c" | xargs astyle --options=docs/astyle_c`
+ 
+To format the sorce files:
+ `$ find . -type f -name "*.h" | xargs astyle --options=docs/astyle_h`
+ 
+Append `-n` to the end to skip creation of backup file or use `$ find . -type f -name "*.bak"  -delete` (for source file's backups) and `find . -type f -name "*.orig" -delete` (for header file's backups)
+
+

docs/astyle_c

@@ -0,0 +1 @@
+--style=kr --convert-tabs --indent=spaces=4 --indent-switches   --pad-oper --unpad-paren  --align-pointer=middle --suffix=.bak --lineend=linux --min-conditional-indent=

docs/astyle_h

@@ -0,0 +1 @@
+--convert-tabs --indent=spaces=4