Add issues section in README.md

Change-Id: I2e9a13b6d157323be07159520a41d58e603a8083
diff --git a/README.md b/README.md
index 8468e6b..e5c7a15 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,16 @@
 - v0.0.3 - 2023-03-11
   - first published version
 
+## Issues and Incompatibilities
+
+Please do not hesitate to report any unknown issues [here](https://github.com/ICLC-10/Templates/issues).
+
+### Known Incompatibilities
+
+- The templates are not fully cross-compatible, i.e. please don't use the Word template with LibreOffice and vice versa. The issues concern at least margins and the Zotero integration.
+- The templates do not fully work with Google Docs and ONLYOFFICE. This concerns, for example, the embedded fonts.
+- With some versions of Word you might need to change the text wrap option for picture insertions to "above and below" as documented [here](https://support.microsoft.com/en-us/office/change-default-text-wrap-setting-for-images-3f9f0e39-9114-4138-90f9-5c3e528862bb).
+
 ## License
 
 The ICLC-10 templates are licensed under the [Creative Commons Attribution-ShareAlike 3.0 License](http://creativecommons.org/licenses/by-sa/3.0/).