Clarification for Inline Comments

Thanks for the excellent style guide!

One thing that is not explicitly defined by the guide is inline comments. Can a section on this topic be added to the "Comments" section block, please?

For example,
```
let foo = 145; // This is modified below in the "baz()" function
```

Is this a legal line in the airbnb style?

And the follow-up question: if it is not legal, then I assume that the correct fix to have it be moved above, like this?

```
// This is modified below in the "baz()" function
let foo = 145;
```

Yet another follow-up question: if inline comments are legal, then what is the correct fix for in-line comments that make the line extend past 100 character? Like the following:

```
// This is a comment describing the following block of variable initializations
let foo = 123; // used in various contexts, but mostly for soccer games, basketball, and football games
let bar = 456; // used only for horse races; it is explicitly reset at the beginning of the "endRace()" function
let baz = 789; // used only for car races; it will be overwritten once we reach the "oilChange()" function
```

If it were moved above, it would overlap with the block comment header. So then does it make the most sense to move them down to the next line, like this?

```
// This is a comment describing the following block of variable initializations
let foo = 123;
// used in various contexts, but mostly for soccer games, basketball, and football games
let bar = 456;
// used only for horse races; it is explicitly reset at the beginning of the "endRace()" function
let baz = 789;
// used only for car races; it will be overwritten once we reach the "oilChange()" function
```

Start by reading the existing "Comments" section of the style guide and the seven-comment thread. Determine whether the thread establishes guidance for inline comments and long lines; done means documenting a maintainer-approved rule with examples, or identifying that a decision is still needed.

Written by the indexing model from the issue text.