Multiple Broken Links in License.md file

[ps-19]

Describe the bug

Multiple links are either broken or directs to incorrect page in LICENSE.md

https://github.com/auraphp/Aura.Di/blob/develop-2/LICENSE
https://github.com/prawnsalad/Nexmo-PHP-lib
https://github.com/thephpleague/oauth2-server/blob/develop/license.txt
http://kohanaframework.org/license

Where was the bug observed
In License file.

To Reproduce
Steps to reproduce the behavior:

1. Go to LICENSE.md

Expected behavior
A clear and concise description of what you expected to happen.

Is there a workaround? What is it.
Describe any ways to get around this bug, even if they are not elegant.

Screenshots
If applicable, add screenshots to help explain your problem.

URL / Environment where this happened
[e.g http://qa.ushahidi.io/post/create]

If the bug is datasource related (e.g. SMS or Targeted SMS), please specify the configuration details (e.g. Frontline + Clickatell, etc):

Desktop Hardware Details (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone Hardware Details (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
None

[ps-19]

Please assign this issue to me.

PR resolves the above issue.