[FEATURE] Update the README

README.md

@@ -70,6 +70,15 @@ typo3_solr_core "de-TestWeb-123-de_DE" do
 end
 ```
 
+Important information
+=====================
+
+The TYPO3 solr project has moved the sources to github. So we also need to fetch the information from github.
+We only handle this if you use the extension in version 3.1 or higher.
+
+For the older versions we just use the files from forge.typo3.org.
+
+
 License and Author
 ==================