docs: drop pip upgrade info from readme

Most systems will have the minimum required version 20.3 already.

diff --git a/README.rst b/README.rst
index 2abb328ca92b40d087c875912d3f94c55acdb92d..970492cea2ec380b1128b9bec44f99a5bc5ee490 100644 (file)
--- a/README.rst
+++ b/README.rst
@@ -9,7 +9,6 @@ Installation
 
 Quick version::
 
-    pip install --upgrade pip               # upgrade pip to at least 20.3
     pip install "psycopg[binary,pool]"      # install binary dependencies
 
 For further information about installation please check `the documentation`__.