Lesson Contribution: Rephrase paragraph about Errors

[Talishask]

I'm a member of The Carpentries Core Team and I'm submitting this issue on behalf of another member of the community. In most cases, I won't be able to follow up or provide more details other than what I'm providing below.

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About the contribution to a lesson or a glossary: In the course https://swcarpentry.github.io/python-novice-inflammation/, lesson 9 "Errors and Exceptions", I saw this introduction:

"Every programmer encounters errors, both those who are just beginning, and those who have been programming for years. Encountering errors and exceptions can be very frustrating at times, and can make coding feel like a hopeless endeavour."

To be honest, this casts too negative a light on the subject of Errors and I would rephrase it like this:

"Every programmer encounters errors, both those who are just beginning, and those who have been programming for years. Dealing with errors is a central task of programming and accounts for about 50% of the working time of a programming project. What sounds like a lot of time is just a natural part of the process and it's a particularly cool feeling (especially on larger projects) when you've found the bug and all the code runs as it should. Examples of the most common types of errors can be found below, but for more complicated errors and more complex problems, it's worth looking at Stack Overflow. There you will find many people with similar concerns."

PS: I think it would be advisable to list the lessons as the second and not the eleventh, as the topic of errors cannot be dealt with early enough and will occur to everyone during the course.