README.md: update for the times (#4757)

Fixes #4754

Co-authored-by: hauntsaninja <>

README.md

@@ -92,18 +92,17 @@ requests. If you have questions related to contributing, drop by the [typing Git
 
 ## Running the tests
 
-The tests are automatically run by Travis CI on every PR and push to
-the repo. Note that it can be useful to enable Travis CI on your own fork of
-typeshed.
+The tests are automatically run on every PR and push to
+the repo.
 
 There are several tests:
 - `tests/mypy_test.py`
-runs tests against [mypy](https://github.com/python/mypy/)
-- `tests/pytype_test.py` runs tests against
+tests typeshed with [mypy](https://github.com/python/mypy/)
+- `tests/pytype_test.py` tests typeshed with
 [pytype](https://github.com/google/pytype/).
-- `tests/mypy_selftest.py` checks mypy's code base using this version of
+- `tests/mypy_self_check.py` checks mypy's code base using this version of
 typeshed.
-- `tests/mypy_test_suite.py` runs mypy's test suite using this version of
+- `tests/mypy_test_suite.py` runs a subset of mypy's test suite using this version of
 typeshed.
 - `tests/check_consistent.py` checks certain files in typeshed remain
 consistent with each other.
@@ -153,10 +152,10 @@ Run using: `(.venv3)$ python3 tests/pytype_test.py`
 
 This test works similarly to `mypy_test.py`, except it uses `pytype`.
 
-### mypy_selftest.py
+### mypy_self_check.py
 
 This test requires Python 3.6 or higher; Python 3.6.1 or higher is recommended.
-Run using: `(.venv3)$ python3 tests/mypy_selftest.py`
+Run using: `(.venv3)$ python3 tests/mypy_self_check.py`
 
 This test checks mypy's code base using mypy and typeshed code in this repo.
 
@@ -181,7 +180,7 @@ Run using `(.venv3)$ python3 tests/stubtest_test.py`
 This test compares the stdlib stubs against the objects at runtime. Because of
 this, the output depends on which version of Python and on what kind of system
 it is run.
-Thus the easiest way to run this test is by enabling Travis CI on your fork;
+Thus the easiest way to run this test is via Github Actions on your fork;
 if you run it locally, it'll likely complain about system-specific
 differences (in e.g, `socket`) that the type system cannot capture.
 If you need a specific version of Python to repro a CI failure,