description of option adjusted

src/options.html

@@ -23,9 +23,9 @@
       <h3>Tab behaviour:</h3>
       <label>
         <input type="checkbox" id="replaceTabCheck">
-        Enable tab replace for assigned domains
+        Replace tab instead of new tab
       </label>
-      <p><em>Replace current tab if a page which is assigned to a specific container is opened (instead of keeping the current tab open).
+      <p><em>Replace the current tab if a page which is assigned to another container is opened (instead of keeping the current tab open).
         Opening tabs with middle mouse button is not affected.</em></p>
       <h3>Keyboard Shortcuts:</h3>
       <p><em>Edit which container is opened when using the numbered shortcuts.</em></p>