Update documentation, release page, and license page links in readme …

…file.

readme.md

@@ -4,10 +4,10 @@ To select each speaker channel, we use a couple of 12V DPDT relays. These relays
 
 The 6-channel speaker selector is an open-source project. This repository has all the schematics, PCB design files, and firmware source codes. 
 
-The complete documentation of this project is in the wiki section of this repository. The PCB Gerber files and compiled binaries are also available in the release section of this repository. The PCB of the 6-channel speaker selector can also order from the PCBWay website.
+The complete [documentation](https://github.com/dilshan/6ch-speaker-selector/wiki) of this project is in the [wiki section](https://github.com/dilshan/6ch-speaker-selector/wiki) of this repository. The PCB Gerber files and compiled binaries are also available in the [release section](https://github.com/dilshan/6ch-speaker-selector/releases) of this repository. The PCB of the 6-channel speaker selector can also order from the [PCBWay website](https://www.pcbway.com/).
 
 All the content of this project is distributed under the terms of the following license:
 
 - Hardware License: [CERN-OHL-W 2.0](https://ohwr.org/cern_ohl_w_v2.txt)
 - Software License: [MIT](https://github.com/dilshan/6ch-speaker-selector/blob/main/LICENSE)
-- Documentation License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)
+- [Documentation](https://github.com/dilshan/6ch-speaker-selector/wiki) License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)