update: README.md

README.md

@@ -2,6 +2,20 @@
 
 # EscapeCode and UnescapeCode
 
+> **Wraning**
+>
+> Starting from version `1.0.5`, the preprocessor uses the [marko parser](https://github.com/frostming/marko/tree/6ee598746bc9a76e62a158c5aa5226a3d65c0864).
+> This is necessary to more accurately identify code blocks nested in other markdown elements. But using the parser imposes the following restrictions:
+> - the loose lists in the blockquote will be converted to tight lists after processing by the preprocessor,
+> - the indent of the list items will be converted to 2 spaces after processing by the preprocessor.
+>
+> If your documentation does not use deep nesting of markdown elements, you may want to use version `1.0.4`, as it is more stable. For install version `1.0.4`, run:
+> ```
+> pip install foliantcontrib.escapecode==1.0.4
+> ```
+>
+> If you have any errors when using the escapecode preprocessor, please [create an issue](https://github.com/foliant-docs/foliantcontrib.escapecode/issues/new/choose).
+
 EscapeCode and UnescapeCode preprocessors work in pair.
 
 EscapeCode finds in the source Markdown content the parts that should not be modified by any next preprocessors. Examples of content that should be left raw: fence code blocks, pre code blocks, inline code.
@@ -140,8 +154,6 @@ Meanings of parameters:
 
 ## Usage
 
-> The loose lists in the blockquote will be converted to tight lists after processing by the preprocessor
-
 Below you can see an example of Markdown content with code blocks and inline code.
 
     # Heading