Fix typos

src/epub/text/chapter-1.xhtml

@@ -13,7 +13,7 @@
 			</h2>
 			<p>The history of all hitherto existing society<a href="endnotes.xhtml#note-4" id="noteref-4" epub:type="noteref">4</a> is the history of class struggles.</p>
 			<p>Freeman and slave, patrician and plebeian, lord and serf, guildmaster<a href="endnotes.xhtml#note-5" id="noteref-5" epub:type="noteref">5</a> and journeyman, in a word, oppressor and oppressed, stood in constant opposition to one another, carried on an uninterrupted, now hidden, now open fight, that each time ended, either in the revolutionary reconstitution of society at large, or in the common ruin of the contending classes.</p>
-			<p>In the earlier epochs of history we find almost everywhere a complicated arrangement of society into various orders, a manifold gradation of social rank. In ancient Rome we have patricians, knights, plebeians, slaves; in the middle ages, feudal lords, vassals, guild masters, journeymen, apprentices, serfs; in almost all of these classes, again, subordinate gradations.</p>
+			<p>In the earlier df epochs of history we find almost everywhere a complicated arrangement of society into various orders, a manifold gradation of social rank. In ancient Rome we have patricians, knights, plebeians, slaves; in the middle ages, feudal lords, vassals, guild masters, journeymen, apprentices, serfs; in almost all of these classes, again, subordinate gradations.</p>
 			<p>The modern bourgeois society that has sprouted from the ruins of feudal society, has not done away with class antagonisms. It has but established new classes, new conditions of oppression, new forms of struggle in place of the old ones.</p>
 			<p>Our epoch, the epoch of the bourgeois, possesses, however, this distinctive feature: it has simplified the class antagonisms. Society as a whole is more and more splitting up into two great hostile camps, into two great classes directly facing each other: Bourgeoisie and Proletariat.</p>
 			<p>From the serfs of the middle ages sprang the chartered burghers of the earliest towns. From these burgesses the first elements of the bourgeoisie were developed.</p>