Merge branch 'master' into sameQ_nonrecursive

mathics/doc/documentation/1-Manual.mdoc

@@ -77,7 +77,7 @@ https://github.com/Mathics3/mathics-core/blob/master/AUTHORS.txt</url> file.
 <section title="What is missing?">
 There are lots of ways in which \Mathics could still be improved. <url>:<con>FUTURE.rst</con>: https://github.com/Mathics-3/mathics/blob/master/FUTURE.txt</url> has the current roadmap.
 
-While we always could use help, such as in Python programming, improving Documentation. But there are other ways to help. For example:
+We always could use help in Python programming and improving the documentation. But there are other ways to help. For example:
 
 <ul>
 <li>Ensure this document is complete and accurate. We could use help to ensure all of the Builtin functions described properly and fully, and that they have link to corresponding Wiki, Sympy, WMA and/or mpath links.