Corrected links in "README.md".
-rw-r--r-- 24 .gitignore
-rw-r--r-- 1731 COPYING.txt
-rw-r--r-- 1291 README.html
-rw-r--r-- 1051 README.md
-rw-r--r-- 796 README.txt
drwxr-xr-x - build
drwxr-xr-x - doc
drwxr-xr-x - source