Update documentation on intraRules, search example

[ascendedguard]

Updated the docs on the few things I struggled a bit with:

• Search was missing an example, beyond the time figuring it out, I ended up having to step through the code in-depth to understand why the order was null when using outOfOrder
• intraRules wasn't documented, so I added it based on Single Error mode only allowing exact matches under 5 characters #53
• The section on intraSub, intraTrn, and intraDel, I kept finding myself having to re-search through the docs to remember what they meant, as it only said in the intraMode: 1 section.

For the search example, I didn't include it in the doc but I did test it out via Codepen: https://codepen.io/ascendedguard/pen/PoLZdBJ

[leeoniya]

actually, any of them can be null.

iirc 🤣 ...

• idxs can be null if the search string ends up empty after trimming whitespace and removing non-alphanumeric chars (except those in quotes, for exact matches)
• info will be null if the number of results exceeds infoThresh

[leeoniya]

and they're null in sequence.

if order is not null, then idxs and info is not null.
if info is not null then idxs is not null
if idxs is null, everything is null

[leeoniya]

thanks!

i actually want to encourage people to use the integrated search, so feel like it should be listed first, but struggle with how to explain the concepts of idxs, info, order. 🤔

[ascendedguard]

Added some more detail to explain it some more, let me know what you think.

Forgot to mention it originally, but I left the variable declarations as let to match the rest of your docs, although they could have all been const instead. They're const in the Codepen.

[ascendedguard]

Anything you need to be able to close this out?