Fix typos

website/master/sample.html.in

@@ -78,7 +78,7 @@ __sample-h__
 #    for IPTC Time values it is HH:MM:SS±HH:MM where HH:MM:SS refers to local 
 #    hour, minute and seconds and ±HH:MM refers to hours and minutes ahead or 
 #    behind Universal Coordinated Time.
-#    A default type is used if none is explicitely given. The default type
+#    A default type is used if none is explicitly given. The default type
 #    is determined based on the key.
 # value 
 #    The remaining text on the line is the value. It can optionally be enclosed in 

website/master/tags.html.in

@@ -11,7 +11,7 @@ __navbar__
 
 <div><h2>Standard Exif Tags</h2></div>
 <p>These are the Exif tags as defined in the <a title="The Exif 2.3 standard (PDF)" href="http://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf">Exif 2.3 standard</a>.</p>
-<p>IFD1 tags are not listed seperately. All IFD0 tags may also be present in IFD1, according to the standard. The second part of the Exiv2 key of an IFD1 tag is <code>Thumbnail</code> (instead of <code>Image</code>), the other two parts of the key are the same as for IFD0 tags.</p>
+<p>IFD1 tags are not listed separately. All IFD0 tags may also be present in IFD1, according to the standard. The second part of the Exiv2 key of an IFD1 tag is <code>Thumbnail</code> (instead of <code>Image</code>), the other two parts of the key are the same as for IFD0 tags.</p>
 
 __Exif__