Update <hgroup> children after first <h#> to <p>, ref. new HTML standard

src/epub/text/chapter-1.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-1" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">I</h2>
-				<h3 epub:type="title">A Not Unnatural Enterprise</h3>
+				<p epub:type="title">A Not Unnatural Enterprise</p>
 			</hgroup>
 			<p>This is written from memory, unfortunately. If I could have brought with me the material I so carefully prepared, this would be a very different story. Whole books full of notes, carefully copied records, firsthand descriptions, and the pictures⁠—that’s the worst loss. We had some bird’s-eyes of the cities and parks; a lot of lovely views of streets, of buildings, outside and in, and some of those gorgeous gardens, and, most important of all, of the women themselves.</p>
 			<p>Nobody will ever believe how they looked. Descriptions aren’t any good when it comes to women, and I never was good at descriptions anyhow. But it’s got to be done somehow; the rest of the world needs to know about that country.</p>

src/epub/text/chapter-10.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-10" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">X</h2>
-				<h3 epub:type="title">Their Religions and Our Marriages</h3>
+				<p epub:type="title">Their Religions and Our Marriages</p>
 			</hgroup>
 			<p>It took me a long time, as a man, a foreigner, and a species of Christian⁠—I was that as much as anything⁠—to get any clear understanding of the religion of Herland.</p>
 			<p>Its deification of motherhood was obvious enough; but there was far more to it than that; or, at least, than my first interpretation of that.</p>

src/epub/text/chapter-11.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-11" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">XI</h2>
-				<h3 epub:type="title">Our Difficulties</h3>
+				<p epub:type="title">Our Difficulties</p>
 			</hgroup>
 			<p>We say, “Marriage is a lottery”; also “Marriages are made in Heaven”⁠—but this is not so widely accepted as the other.</p>
 			<p>We have a well-founded theory that it is best to marry “in one’s class,” and certain well-grounded suspicions of international marriages, which seem to persist in the interests of social progress, rather than in those of the contracting parties.</p>

src/epub/text/chapter-12.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-12" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">XII</h2>
-				<h3 epub:type="title">Expelled</h3>
+				<p epub:type="title">Expelled</p>
 			</hgroup>
 			<p>We had all meant to go home again. Indeed we had <em>not</em> meant⁠—not by any means⁠—to stay as long as we had. But when it came to being turned out, dismissed, sent away for bad conduct, we none of us really liked it.</p>
 			<p>Terry said he did. He professed great scorn of the penalty and the trial, as well as all the other characteristics of “this miserable half-country.” But he knew, and we knew, that in any “whole” country we should never have been as forgivingly treated as we had been here.</p>

src/epub/text/chapter-2.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-2" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">II</h2>
-				<h3 epub:type="title">Rash Advances</h3>
+				<p epub:type="title">Rash Advances</p>
 			</hgroup>
 			<p>Not more than ten or fifteen miles we judged it from our landing rock to that last village. For all our eagerness we thought it wise to keep to the woods and go carefully.</p>
 			<p>Even Terry’s ardor was held in check by his firm conviction that there were men to be met, and we saw to it that each of us had a good stock of cartridges.</p>

src/epub/text/chapter-3.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-3" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">III</h2>
-				<h3 epub:type="title">A Peculiar Imprisonment</h3>
+				<p epub:type="title">A Peculiar Imprisonment</p>
 			</hgroup>
 			<p>From a slumber as deep as death, as refreshing as that of a healthy child, I slowly awakened.</p>
 			<p>It was like rising up, up, up through a deep warm ocean, nearer and nearer to full light and stirring air. Or like the return to consciousness after concussion of the brain. I was once thrown from a horse while on a visit to a wild mountainous country quite new to me, and I can clearly remember the mental experience of coming back to life, through lifting veils of dream. When I first dimly heard the voices of those about me, and saw the shining snowpeaks of that mighty range, I assumed that this too would pass, and I should presently find myself in my own home.</p>

src/epub/text/chapter-4.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-4" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">IV</h2>
-				<h3 epub:type="title">Our Venture</h3>
+				<p epub:type="title">Our Venture</p>
 			</hgroup>
 			<p>We were standing on a narrow, irregular, all too slanting little ledge, and should doubtless have ignominiously slipped off and broken our rash necks but for the vine. This was a thick-leaved, wide-spreading thing, a little like Amphelopsis.</p>
 			<p>“It’s not <em>quite</em> vertical here, you see,” said Terry, full of pride and enthusiasm. “This thing never would hold our direct weight, but I think if we sort of slide down on it, one at a time, sticking in with hands and feet, we’ll reach that next ledge alive.”</p>

src/epub/text/chapter-5.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-5" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">V</h2>
-				<h3 epub:type="title">A Unique History</h3>
+				<p epub:type="title">A Unique History</p>
 			</hgroup>
 			<p>It is no use for me to try to piece out this account with adventures. If the people who read it are not interested in these amazing women and their history, they will not be interested at all.</p>
 			<p>As for us⁠—three young men to a whole landful of women⁠—what could we do? We did get away, as described, and were peacefully brought back again without, as Terry complained, even the satisfaction of hitting anybody.</p>

src/epub/text/chapter-6.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-6" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">VI</h2>
-				<h3 epub:type="title">Comparisons Are Odious</h3>
+				<p epub:type="title">Comparisons Are Odious</p>
 			</hgroup>
 			<p>I had always been proud of my country, of course. Everyone is. Compared with the other lands and other races I knew, the United States of America had always seemed to me, speaking modestly, as good as the best of them.</p>
 			<p>But just as a clear-eyed, intelligent, perfectly honest, and well-meaning child will frequently jar one’s self-esteem by innocent questions, so did these women, without the slightest appearance of malice or satire, continually bring up points of discussion which we spent our best efforts in evading.</p>

src/epub/text/chapter-7.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-7" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">VII</h2>
-				<h3 epub:type="title">Our Growing Modesty</h3>
+				<p epub:type="title">Our Growing Modesty</p>
 			</hgroup>
 			<p>Being at last considered sufficiently tamed and trained to be trusted with scissors, we barbered ourselves as best we could. A close-trimmed beard is certainly more comfortable than a full one. Razors, naturally, they could not supply.</p>
 			<p>“With so many old women you’d think there’d be some razors,” sneered Terry. Whereat Jeff pointed out that he never before had seen such complete absence of facial hair on women.</p>

src/epub/text/chapter-8.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-8" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">VIII</h2>
-				<h3 epub:type="title">The Girls of Herland</h3>
+				<p epub:type="title">The Girls of Herland</p>
 			</hgroup>
 			<p>At last Terry’s ambition was realized. We were invited, always courteously and with free choice on our part, to address general audiences and classes of girls.</p>
 			<p>I remember the first time⁠—and how careful we were about our clothes, and our amateur barbering. Terry, in particular, was fussy to a degree about the cut of his beard, and so critical of our combined efforts, that we handed him the shears and told him to please himself. We began to rather prize those beards of ours; they were almost our sole distinction among those tall and sturdy women, with their cropped hair and sexless costume. Being offered a wide selection of garments, we had chosen according to our personal taste, and were surprised to find, on meeting large audiences, that we were the most highly decorated, especially Terry.</p>

src/epub/text/chapter-9.xhtml

@@ -9,7 +9,7 @@
 		<section id="chapter-9" epub:type="chapter">
 			<hgroup>
 				<h2 epub:type="ordinal z3998:roman">IX</h2>
-				<h3 epub:type="title">Our Relations and Theirs</h3>
+				<p epub:type="title">Our Relations and Theirs</p>
 			</hgroup>
 			<p>What I’m trying to show here is that with these women the whole relationship of life counted in a glad, eager growing-up to join the ranks of workers in the line best loved; a deep, tender reverence for one’s own mother⁠—too deep for them to speak of freely⁠—and beyond that, the whole, free, wide range of sisterhood, the splendid service of the country, and friendships.</p>
 			<p>To these women we came, filled with the ideas, convictions, traditions, of our culture, and undertook to rouse in them the emotions which⁠—to us⁠—seemed proper.</p>