MDL-41421 tool_generator: Fixing help text

- p.e. replaced by e.g. which sounds more English-friendly
- Adding an extra line break as markdown don't like
p and li together

admin/tool/generator/lang/en/tool_generator.php

@@ -97,11 +97,11 @@
 
 This test plan is designed to work along with {$a}, which makes easier to run the test plan in a specific Moodle environment, gathers information about the runs and compares the results, so you will need to download it and use it\'s test_runner.sh script or follow the installation and usage instructions.
 
-You need to set a password for the course users in config.php (p.e. $CFG->tool_generator_users_password = \'moodle\';) there
-is no default value for this password to prevent unintended usages of the tool. You need to use the update passwords option in case your course users have other passwords or they were generated by tool_generator but without setting a $CFG->tool_generator_users_password value.
+You need to set a password for the course users in config.php (e.g. $CFG->tool_generator_users_password = \'moodle\';). There is no default value for this password to prevent unintended usages of the tool. You need to use the update passwords option in case your course users have other passwords or they were generated by tool_generator but without setting a $CFG->tool_generator_users_password value.
 
 It is part of tool_generator so it works well with the courses generated by the courses and the site generators, it can
 also be used with any course that contains, at least:
+
 * Enough enrolled users (depends on the test plan size you select) with the password reset to \'moodle\'
 * A page module instance
 * A forum module instance with at least one discussion and one reply