README.md: update installation section

r5d · r5d · commit 80f88021717e · 2021-06-27T00:46:09.000-04:00
update documentation on how to use the repo version of `acmens`.
diff --git a/README.md b/README.md
@@ -37,9 +37,6 @@ make venv
 make develop
 # note that any changes you make to acmens.py will be instantly reflected
 # in the acmens in your PATH.
-
-# de-activate the virtual environment:
-deactivate
 ```
 
 ## getting/renewing a certificate
