Use no-break hyphen for sounds

src/epub/content.opf

@@ -61,7 +61,7 @@
 		<dc:language>en-US</dc:language>
 		<dc:source>https://www.gutenberg.org/ebooks/86</dc:source>
 		<dc:source>https://catalog.hathitrust.org/Record/000665090</dc:source>
-		<meta property="se:word-count">119581</meta>
+		<meta property="se:word-count">119585</meta>
 		<meta property="se:reading-ease.flesch">75.64</meta>
 		<meta property="se:url.encyclopedia.wikipedia">https://en.wikipedia.org/wiki/A_Connecticut_Yankee_in_King_Arthur%27s_Court</meta>
 		<meta property="se:url.vcs.github">https://github.com/standardebooks/mark-twain_a-connecticut-yankee-in-king-arthurs-court</meta>

src/epub/text/chapter-15.xhtml

@@ -55,7 +55,7 @@
 			<p>“Just so⁠—and brake his back.”</p>
 			<p>“⁠—and lightly Sir Gawaine rose upon his feet and pulled out his sword, and dressed him toward Sir Marhaus on foot, and therewith either came unto other eagerly, and smote together with their swords, that their shields flew in cantels, and they bruised their helms and their hauberks, and wounded either other. But Sir Gawaine, fro it passed nine of the clock, waxed by the space of three hours ever stronger and stronger and thrice his might was increased. All this espied Sir Marhaus, and had great wonder how his might increased, and so they wounded other passing sore; and then when it was come noon⁠—”</p>
 			<p>The pelting singsong of it carried me forward to scenes and sounds of my boyhood days:</p>
-			<p>“N-e-e-ew Haven! ten minutes for refreshments⁠—knductr’ll strike the gong-bell two minutes before train leaves⁠—passengers for the Shoreline please take seats in the rear k’yar, this k’yar don’t go no furder⁠—<em>ahh</em>-pls, <em>aw</em>-rnjz, b’<em>nan</em> ners, <em>s-a-n-d</em>’ches, p⁠—op-corn!”</p>
+			<p>“N‑e‑e‑ew Haven! ten minutes for refreshments⁠—knductr’ll strike the gong-bell two minutes before train leaves⁠—passengers for the Shoreline please take seats in the rear k’yar, this k’yar don’t go no furder⁠—<em>ahh</em>-pls, <em>aw</em>-rnjz, b’<em>nan</em> ners, <em>s‑a‑n‑d</em>’ches, p⁠—op-corn!”</p>
 			<p>“⁠—and waxed past noon and drew toward evensong. Sir Gawaine’s strength feebled and waxed passing faint, that unnethes he might dure any longer, and Sir Marhaus was then bigger and bigger⁠—”</p>
 			<p>“Which strained his armor, of course; and yet little would one of these people mind a small thing like that.”</p>
 			<p>“⁠—and so, Sir Knight, said Sir Marhaus, I have well felt that ye are a passing good knight, and a marvelous man of might as ever I felt any, while it lasteth, and our quarrels are not great, and therefore it were a pity to do you hurt, for I feel you are passing feeble. Ah, said Sir Gawaine, gentle knight, ye say the word that I should say. And therewith they took off their helms and either kissed other, and there they swore together either to love other as brethren⁠—”</p>