Add a section about LXQt components to porters handbook

[sevan]

Summary

Bug 215650

[swills]

The components list seems to match up with Mk/Uses/lxqt.mk and the content looks fine to me.

[bcr]

2 textual suggestions...

en_US.ISO8859-1/books/porters-handbook/special/chapter.xml

2906

Maybe s/brings/adds a/ ?

2908

Maybe s/through/from the/ ?

[bjk]

en_US.ISO8859-1/books/porters-handbook/special/chapter.xml

2863

It's probably best to explicitly say "commonly used components" to be clear about what these values are.

2880

I don't understand what this entry is -- is it helpers *for* additional CMake modules, or additional CMake modules that are helpful, or ...?

[sevan]

updated diff addressing the items listed.

[wblock]

en_US.ISO8859-1/books/porters-handbook/special/chapter.xml

2861

Suspect this should be "...and set <varname>USE_LXQT</varname>"

2863

Avoid the aside: "...below and also documented..." (and remember to remove the closing paren) (yes that's an aside, and this one too)

[sevan]

updated diff with context posted.

[wblock]

en_US.ISO8859-1/books/porters-handbook/special/chapter.xml

2860

Try to avoid if/then sentences. Occasional use is okay, but still, try to avoid. Often just rearranging them gets rid of the if/then and pause:

Applications depending on LXQt should set

2863

Below, it just says "Available LXQt Components". Isn't that all of them? If it is, this can just say "...a list of needed components from the table below."

[sevan]

Addressed the remaining two points.

[wblock]

Approved for great justice!