added v3.11

Author: stefantaubert

README.md

@@ -86,11 +86,12 @@ dict-cli map-symbols-in-pronunciations \
 ```sh
 # update
 sudo apt update
-# install Python 3.8, 3.9 & 3.10 for ensuring that tests can be run
+# install Python 3.8, 3.9, 3.10 & 3.11 for ensuring that tests can be run
 sudo apt install python3-pip \
   python3.8 python3.8-dev python3.8-distutils python3.8-venv \
   python3.9 python3.9-dev python3.9-distutils python3.9-venv \
-  python3.10 python3.10-dev python3.10-distutils python3.10-venv
+  python3.10 python3.10-dev python3.10-distutils python3.10-venv \
+  python3.11 python3.11-dev python3.11-distutils python3.11-venv
 # install pipenv for creation of virtual environments
 python3.8 -m pip install pipenv --user
 
@@ -119,6 +120,7 @@ Final lines of test result output:
   py38: commands succeeded
   py39: commands succeeded
   py310: commands succeeded
+  py311: commands succeeded
   congratulations :)
 ```