Update Readme.md 

+ added Translations section 
~ changed outdated NDK to latest (10), same with GCC 
~ smaller changes like typos and spelling
~ added missing projects alphabetically under Acknowledgements
~ Todo updated, now it's a already done and todo list x = already done [ ] todo (better look I think)

@ukanth please also update the readmes in the donate/master branches (thanks)
Merge pull request #296 from CHEF-KOCH/patch-13

Update Readme.md