edit readme

README → README.md

@@ -1,17 +1,14 @@
-Linux kernel
-============
+ # Linux kernel
+
 
 There are several guides for kernel developers and users. These guides can
-be rendered in a number of formats, like HTML and PDF. Please read
-Documentation/admin-guide/README.rst first.
+be rendered in a number of formats, like HTML and PDF. Please read <a href="https://github.com/torvalds/linux/tree/master/Documentation/admin-guide">Documentation/admin-guide/README.rst</a> first.
 
-In order to build the documentation, use ``make htmldocs`` or
-``make pdfdocs``.  The formatted documentation can also be read online at:
 
-    https://www.kernel.org/doc/html/latest/
+In order to build the documentation, use ``make htmldocs`` or
+``make pdfdocs``.  The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/
 
-There are various text files in the Documentation/ subdirectory,
-several of them using the Restructured Text markup notation.
+There are various text files in the Documentation/ subdirectory,several of them using the Restructured Text markup notation.
 
 Please read the Documentation/process/changes.rst file, as it contains the
 requirements for building and running the kernel, and information about