Update README.md

fix list 1, 2, 3

When you first visit the person should immediately see the picture? What is this application it is clear from the description.
Description in beginning

add description for Tip4commit
please check written. bad writing in English.

If you think all this is not needed, then Yes just close pull request
Merge pull request #100 from X-NicON/patch-1

Update README.md
Merge branch 'master' into swig3