I downloaded your file so I could take a look and a listen for you. (normally we PLs wait for the file to be placed in the MW by the coordinator) To start with, you did upload it correctly, with a good file name. (Many of the later chapters in this project are split in two, so if you read chapters further down the list, make certain you triple-check the section number that goes with that chapter!)
You have a very nice reading style. I love your inflections.
Checker passes this recording with warnings - Namely, your technical specs are all great, but the volume is flagged as a little too loud.
Once open in Audacity (that's what I use, so I hope it matches what you use, as I'm not familiar with other programs) - I can see that your recording has sections that spike louder than the normal flow of conversation. The whole LibriVox intro does this, and then some spots of dialogue do. This is SUPER common in my recordings when I am either putting on a character voice or doing a yelling/urgent line. Look at the section from time stamp 6:43 - 6:55. See how the waves are going all the way to the top and bottom of the field? You can tell just by looking that this section will get flagged by Checker. Almost always, you can fix such spots with the "Amplify" effect. Simply place the mouse in front of that section, click and drag to highlight it, and then pull down the "Effects" menu - click on Amplify. The top box will have a highlighted number in it. I always just type -1 and hit OK. Sometimes that is enough to bring the volume down sufficiently. Other times, it needs a repeat or two of the action (with the area highlighted, just push control-R, and it will repeat whatever editing action you last did). You'll need to "neg-amp" the LibriVox intro, and there are several places of dialogue throughout the recording that will need it as well. I wouldn't just highlight the entire recording track (which you can do by pushing control-A) and neg-amp the whole thing, because there are a lot of softer stretches that you'll want to keep at the volume they currently have.
You'll find yourself getting more and more comfortable at keeping the side of your eye aware of what the recording track is doing while you're reading (I keep the screen split between my reading page and the Audacity track) - and so you can repeat a line right away if you need to (and later cut out the one you didn't want to keep). In fact, I just barely did that in my Cedric recording, when I couldn't get a Sir Gilroy's shouted lines to behave nicely at first!
The volume fixes is the only thing you really need to fix in this chapter.
If you like to get feedback on purely optional things: You may want to shorten some of the longer pauses. Once in a while, between paragraphs, they feel a little long. Also, if you want to remove mouth clicks in empty spaces (I *always* get these in front of or behind words starting with certain letters, and sometimes in the middle of pauses) - it is easy to cut them out without messing up your timing if you zoom in on the track. They're easy to see, too, when you're editing - they make perpendicular tick marks across the flat line in the track. Sometimes I get these clicks inside a word (Ls will do that to me) - but 99% of the time, it's better to leave those than to try removing them.
You are going to be terrific reader for LibriVox!! I'm excited to see you coming on board.
(I only ran the first 10 minutes of the file - why don't you go through and neg-amp the areas where the volume is too big, and if you want to clip out clicks and long pauses. Then, re-export the file to the same name, and re-upload it. copy/paste the new link and time into a discussion post, and I'll look at the new file again.)