rename email to avoid flak8 conflict

Author: scivision

README.md

@@ -44,7 +44,7 @@ python -m pip install -e .
 `gitbranch`
 : Tells of any non-master branches under directory ~/code
 
-`python -m gitutils.email`
+`python -m gitutils.git_email`
 : list all contributor email addresses. To fix unwanted emails use [Git-filter-repo](https://www.scivision.dev/git-update-email-address/)
 
 `find_missing_file`

src/gitutils/tests/test_email.py

@@ -4,5 +4,5 @@
 
 def test_email(git_commit):
     p = git_commit
-    ret = subprocess.check_output([sys.executable, "-m", "gitutils.email", p], text=True)
+    ret = subprocess.check_output([sys.executable, "-m", "gitutils.git_email", p], text=True)
     assert ret