Spelling and grammar fixes (#7695)

certbot-ci/certbot_integration_tests/conftest.py

@@ -62,7 +62,7 @@ def _setup_primary_node(config):
     """
     Setup the environment for integration tests.
     Will:
-        - check runtime compatiblity (Docker, docker-compose, Nginx)
+        - check runtime compatibility (Docker, docker-compose, Nginx)
         - create a temporary workspace and the persistent GIT repositories space
         - configure and start paralleled ACME CA servers using Docker
         - transfer ACME CA servers configurations to pytest nodes using env variables

certbot-ci/certbot_integration_tests/utils/acme_server.py

@@ -189,7 +189,7 @@ class ACMEServer(object):
         print('=> Finished configuring the HTTP proxy.')
 
     def _launch_process(self, command, cwd=os.getcwd(), env=None):
-        """Launch silently an subprocess OS command"""
+        """Launch silently a subprocess OS command"""
         if not env:
             env = os.environ
         process = subprocess.Popen(command, stdout=self._stdout, stderr=subprocess.STDOUT, cwd=cwd, env=env)