Merge #749: Solve redirecting GitHub links

26286c1 Solve redirecting GitHub links (MarcoFalke)

Pull request description:

  Fix #748, by replacing /bitcoin links with /bitcoin-core links, because everything Bitcoin Core related except the main repo has been moved to /bitcoin-core.

ACKs for top commit:
  harding:
    Tested ACK 26286c1 Thanks!

Tree-SHA512: c39d1995d3a6b4fd77cd2295035bbeee48305b3120c70a2320060d7a0a5b5f6f6446b058ace31a4a444dc06b47c1c5783f26ef8b8f6ce0004cd1a6963557f747

Author: harding

_posts/en/pages/2016-01-01-about.md

@@ -17,7 +17,7 @@ Bitcoin Core is an [open source](https://opensource.org/) project which maintain
 
 It is a direct descendant of the original Bitcoin software client released by Satoshi Nakamoto after he published the famous Bitcoin whitepaper.
 
-Bitcoin Core consists of both "full-node" software for fully validating the blockchain as well as a bitcoin wallet. The project also currently maintains related software such as the cryptography library [libsecp256k1](https://github.com/bitcoin/secp256k1) and others located at [GitHub](https://github.com/bitcoin).
+[Bitcoin Core](https://github.com/bitcoin/bitcoin) consists of both "full-node" software for fully validating the blockchain as well as a bitcoin wallet. The project also currently maintains related software such as the cryptography library [libsecp256k1](https://github.com/bitcoin-core/secp256k1) and others located at [GitHub](https://github.com/bitcoin-core).
 
 Anyone can [contribute to Bitcoin Core](/en/contribute/).