Better wording/formatting in the docs (#600)

Author: sbarzowski

doc/ref/stdlib.html

@@ -1591,7 +1591,7 @@ <h4 id="set">std.set(arr)</h4>
 <div class="hgroup">
   <div class="hgroup-inline">
     <div class="panel">
-      <p>Syntax sugar for std.uniq(std.sort(arr)).</p>
+      <p>Shortcut for std.uniq(std.sort(arr)).</p>
     </div>
     <div style="clear: both"></div>
   </div>
@@ -1704,7 +1704,7 @@ <h4 id="base64">std.base64(v)</h4>
   <div class="hgroup-inline">
     <div class="panel">
       <p>
-        Encodes the given value into a base64 string.  The encoding sequence is A-Za-z0-9+/ with =
+        Encodes the given value into a base64 string.  The encoding sequence is <code>A-Za-z0-9+/</code> with <code>=</code>
         to pad the output to a multiple of 4 characters.  The value can be a string or an array of
         numbers, but the codepoints / numbers must be in the 0 to 255 range.  The resulting string
         has no line breaks.