MANUAL/README: Fixed broken links (#3316)

MANUAL/README: "groff man" links to groff_man rather than groff

MANUAL/README: Word docx link to wikipedia

MANUAL.txt

@@ -67,7 +67,7 @@ Markdown can be expected to be lossy.
 [LaTeX]: http://latex-project.org
 [`beamer`]: https://ctan.org/pkg/beamer
 [Beamer User's Guide]: http://ctan.math.utah.edu/ctan/tex-archive/macros/latex/contrib/beamer/doc/beameruserguide.pdf
-[ConTeXt]: http://contextgarden.net/
+[ConTeXt]: http://www.contextgarden.net/
 [RTF]: http://en.wikipedia.org/wiki/Rich_Text_Format
 [DocBook]: http://docbook.org
 [txt2tags]: http://txt2tags.org
@@ -81,13 +81,13 @@ Markdown can be expected to be lossy.
 [ZimWiki markup]: http://zim-wiki.org/manual/Help/Wiki_Syntax.html
 [TWiki markup]: http://twiki.org/cgi-bin/view/TWiki/TextFormattingRules
 [Haddock markup]: https://www.haskell.org/haddock/doc/html/ch03s08.html
-[groff man]: http://developer.apple.com/DOCUMENTATION/Darwin/Reference/ManPages/man7/groff_man.7.html
+[groff man]: http://man7.org/linux/man-pages/man7/groff_man.7.html
 [Haskell]: https://www.haskell.org
 [GNU Texinfo]: http://www.gnu.org/software/texinfo/
 [Emacs Org mode]: http://orgmode.org
 [AsciiDoc]: http://www.methods.co.nz/asciidoc/
 [DZSlides]: http://paulrouget.com/dzslides/
-[Word docx]: http://www.microsoft.com/interop/openup/openxml/default.aspx
+[Word docx]: https://en.wikipedia.org/wiki/Office_Open_XML
 [PDF]: https://www.adobe.com/pdf/
 [reveal.js]: http://lab.hakim.se/reveal-js/
 [FictionBook2]: http://www.fictionbook.org/index.php/Eng:XML_Schema_Fictionbook_2.1

README.md

@@ -69,7 +69,7 @@ Markdown can be expected to be lossy.
 [LaTeX]: http://latex-project.org
 [`beamer`]: https://ctan.org/pkg/beamer
 [Beamer User's Guide]: http://ctan.math.utah.edu/ctan/tex-archive/macros/latex/contrib/beamer/doc/beameruserguide.pdf
-[ConTeXt]: http://contextgarden.net/
+[ConTeXt]: http://www.contextgarden.net/
 [RTF]: http://en.wikipedia.org/wiki/Rich_Text_Format
 [DocBook]: http://docbook.org
 [txt2tags]: http://txt2tags.org
@@ -83,13 +83,13 @@ Markdown can be expected to be lossy.
 [ZimWiki markup]: http://zim-wiki.org/manual/Help/Wiki_Syntax.html
 [TWiki markup]: http://twiki.org/cgi-bin/view/TWiki/TextFormattingRules
 [Haddock markup]: https://www.haskell.org/haddock/doc/html/ch03s08.html
-[groff man]: http://developer.apple.com/DOCUMENTATION/Darwin/Reference/ManPages/man7/groff_man.7.html
+[groff man]: http://man7.org/linux/man-pages/man7/groff_man.7.html
 [Haskell]: https://www.haskell.org
 [GNU Texinfo]: http://www.gnu.org/software/texinfo/
 [Emacs Org mode]: http://orgmode.org
 [AsciiDoc]: http://www.methods.co.nz/asciidoc/
 [DZSlides]: http://paulrouget.com/dzslides/
-[Word docx]: http://www.microsoft.com/interop/openup/openxml/default.aspx
+[Word docx]: https://en.wikipedia.org/wiki/Office_Open_XML
 [PDF]: https://www.adobe.com/pdf/
 [reveal.js]: http://lab.hakim.se/reveal-js/
 [FictionBook2]: http://www.fictionbook.org/index.php/Eng:XML_Schema_Fictionbook_2.1