SimpleMDE ➔ EasyMDE

SimpleMDE is no longer maintained: sparksuite/simplemde-markdown-editor#829
➔ Switch to [EasyMDE](https://github.com/Ionaru/easy-markdown-editor), a fork.

readonly mode: `EasyMDE.prototype.markdown` is no longer as simple as
`SimpleMDE.prototype.markdown` used to be (now requires an EasyMDE
instance) so this cset instead adds the `marked` lib to call it
directly, without relying on EasyMDE's wrapper.

README.md

@@ -3,7 +3,7 @@
 This widget add a markdown Editor to Text field. In Edit mode the Editor is fuly usable
 and in readonly mode the widget shows a naive transformation of markdown to HTML as a preview.
 
-This module uses the JavaScript library [SimpleMDE](https://simplemde.com/) as a Markdown Editor for the client.
+This module uses the JavaScript library [EasyMDE](https://github.com/Ionaru/easy-markdown-editor) as a Markdown Editor for the client.
 
 And the python [Markdown library](https://github.com/Python-Markdown/markdown) for backend usage.
 
@@ -31,7 +31,7 @@ In your xml view, add `widget="markdown"` to any Text field.
 
 ### Options
 
-In the options attribute, pass any options of [SimpleMDE](https://github.com/sparksuite/simplemde-markdown-editor#configuration) configuration.
+In the options attribute, pass any options of [EasyMDE](https://github.com/Ionaru/easy-markdown-editor#configuration) configuration.
 
 ## Usage in report / Website templates
 
@@ -49,8 +49,12 @@ Do not contact contributors directly about support or help with technical issues
 
 ## Credits
 
-Big thanks to the authors of [SimpleMDE](https://github.com/sparksuite/simplemde-markdown-editor).
+Big thanks to the authors of [EasyMDE](https://github.com/Ionaru/easy-markdown-editor), which is based on [SimpleMDE](https://github.com/sparksuite/simplemde-markdown-editor).
 
 ### Widget Author
 
 [![Coding Dodo](https://res.cloudinary.com/phildl-cloudinary/image/upload/w_300/v1617638212/codingdodo/Coding_Dodo_rplksw.png)](https://codingdodo.com)
+
+### Widget Contributors
+
+* [XCG](https://xcg-consulting.fr/)

__manifest__.py

@@ -7,7 +7,7 @@
     """,
     "description": """
         Allow the use of the widget markdown to display markdown content into Odoo views 
-        in render mode and a markdown Editor in edit mode thanks to SimpleMDE Javascript library
+        in render mode and a markdown Editor in edit mode thanks to EasyMDE Javascript library
     """,
     "author": "Coding Dodo",
     "website": "https://codingdodo.com",
@@ -20,7 +20,7 @@
     "assets": {
         "web.assets_backend": [
             "/web_widget_markdown/static/src/js/field_widget.js",
-            "/web_widget_markdown/static/lib/simplemde.min.css",
+            "/web_widget_markdown/static/lib/easymde.min.css",
         ],
         "web.assets_qweb": [
             "/web_widget_markdown/static/src/xml/qweb_template.xml",