Apply suggestions from code review

Co-authored-by: Björn Gustavsson <bgustavsson@gmail.com>

erts/doc/src/erlang.xml

@@ -2433,7 +2433,7 @@ os_prompt%</pre>
           not need a single binary. This can be useful for passing the data
           to nif functions such as
           <seecref marker="erl_nif#enif_inspect_iovec"><c>enif_inspect_iovec</c></seecref>
-          or do more effective message passing. The advantage of using this
+          or do more efficient message passing. The advantage of using this
           function over
           <seemfa marker="#iolist_to_binary/1"><c>iolist_to_binary/1</c></seemfa>
           is that it does not have to copy
@@ -4955,7 +4955,7 @@ RealSystem = system + MissedSystem</code>
         <p>Returns a list of Erlang modules that are preloaded in
           the run-time system. Pre-loaded modules are Erlang modules
           that are needed to bootstrap the system to load the first
-          Erlang modes from either disk or <seeerl marker="kernel:erl_boot_server">
+          Erlang modules from either disk or by using <seeerl marker="kernel:erl_boot_server">
           <c>erl_boot_server</c></seeerl>.</p>
       </desc>
     </func>
@@ -9823,14 +9823,14 @@ Metadata = #{ pid => pid(),
           <item>
             <p>Returns the size of Erlang term words in bytes as an
               integer, that is, 4 is returned on a 32-bit architecture,
-              and 8 is returned on a pure 64-bit architecture.</p>
+              and 8 is returned on a 64-bit architecture.</p>
           </item>
           <tag><c>{wordsize, external}</c></tag>
           <item>
             <p>Returns the true word size of the emulator, that is,
               the size of a pointer. The value is given in bytes
               as an integer. On a pure 32-bit architecture, 4 is
-              returned. On both on a pure
+              returned. On a
               64-bit architecture, 8 is returned.</p>
           </item>
         </taglist>