README.md: Update project status

Author: Peter Kubov

README.md

@@ -1,10 +1,10 @@
-### Project status
-
-The RetDec project is currently in a **limited maintenance mode** due to a lack of resources:
-* Pull Requests are welcomed. They are reviewed with priority, if possible without delays.
-* Issues are reacted on with delays up to one quarter. Issues are not actively solved unless they relate to a basic project maintenance.
-* The basic project maintenance continues.
-* Only a very limited development is carried on.
+> **Warning**
+>
+> The RetDec project is currently in a **limited maintenance mode** due to a lack of resources:
+> * Pull Requests are welcomed. They are reviewed with priority, if possible without delays.
+> * Issues are reacted on with delays up to one quarter. Issues are not actively solved unless they relate to a basic project maintenance.
+> * The basic project maintenance continues.
+> * Only a very limited development is carried on.
 
 # RetDec