Fix a few things

Good commit message, I know

markdownrunner.py

@@ -77,7 +77,7 @@ def parse_snippet(s: Tuple[str, str]) -> Sequence[Command]:
 			parts = line.split(maxsplit=5)
 			assert parts[3] == '-H', "Insecure sudo?"
 			user = parts[2]
-			directory = f'~{user}'	# This actually works with SSH. That is nice, since we don't need to know the mapping of 
+			directory = f'~{user}'	# This actually works with SSH. That is nice, since we don't need to know the target's /etc/passwd
 			cmd = parts[4]
 		elif line.startswith('sudo'):
 			parts = line.split(maxsplit=2)
@@ -112,6 +112,7 @@ def user_action(hunk: Sequence[Command], context=None) -> Sequence[Command]:
 		for cmd in hunk:
 			global host
 			result += f'SSH: {cmd.user}@{host} {cmd.directory} $ {cmd.command}\n'
+		return result
 
 
 	# TODO: Print context in color (gray?)
@@ -124,7 +125,7 @@ def user_action(hunk: Sequence[Command], context=None) -> Sequence[Command]:
 	answer = input("What to do: edit(e), run(y), skip(n)?")
 	if answer.startswith(('e', 'E')):
 		import tempfile
-		with tempfile.NamedTemporaryFile() as tmpfile:
+		with tempfile.NamedTemporaryFile(mode='r+') as tmpfile:
 			# Fill the file with data
 			for cmd in hunk:
 				tmpfile.file.write(f"{cmd.user}\t{cmd.directory}\t{cmd.command}\n")
@@ -180,7 +181,7 @@ def process_file(fn: str):
 	snippets = extract_snippets(pd)
 	for snip in snippets:
 		cmds = parse_snippet(snip)
-		cmds = user_action(cmds)
+		cmds = user_action(cmds, context=cmds[0].context)
 		for cmd in cmds:
 			run_command(cmd)