help: Update history page to 3.38

Remove obsolete keyboard instructions; Improve paragraph layout format.

Ref: #185

help/C/history.page

@@ -6,6 +6,7 @@
     <info>
         <link type="guide" xref="index#ui"/>
         <revision pkgversion="3.8" version="0.1" date="2013-04-18" status="review"/>
+        <revision pkgversion="3.38.0" date="2020-09-25" status="review"/>
 
         <credit type="author copyright">
           <name>Gopal Krishnan</name>
@@ -18,17 +19,26 @@
           <email its:translate="no">sanketdasgupta@gmail.com</email>
           <years>2016, 2017</years>
         </credit>
+
+        <credit type="editor">
+          <name>Pranali Deshmukh</name>
+          <email>pranali21293@gmail.com</email>
+          <years>2020</years>
+        </credit>
     </info>
 
 	<title>Using the History View</title>
 
-    <p>
+  <p>
     The History View is located above the entry box and is designed to show
     your previous calculations in the form of a scrollable list that can be
-    clicked and scrolled through using a mouse or even navigated and selected
-    using the arrow keys on a keyboard. Once an entry has been selected, it
-    will immediately show up in the entry box for you to manipulate and use.
+    clicked and scrolled through using a mouse. 
+  </p>
+  <p>
+    Once an entry has been selected, it will immediately show up in the entry box for you to manipulate and use.
+  </p>
+  <p>
     Finally, there is no upper limit on the number of calculations that can
     show up in the list for you to use.
-    </p>
+  </p>
 </page>