#N/A: Add port_already_in_use rule

README.md

@@ -210,6 +210,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `no_such_file` – creates missing directories with `mv` and `cp` commands;
 * `open` – either prepends `http://` to address passed to `open` or create a new file or directory and passes it to `open`;
 * `pip_unknown_command` – fixes wrong `pip` commands, for example `pip instatl/pip install`;
+* `port_already_in_use` – kills process that bound port;
 * `python_command` – prepends `python` when you trying to run not executable/without `./` python script;
 * `python_execute` – appends missing `.py` when executing Python files;
 * `quotation_marks` – fixes uneven usage of `'` and `"` when containing args';