Add license information to relevant files

Dockerfile

@@ -1,3 +1,6 @@
+# Copyright (c) 2018 [email protected].
+# This work is licensed under the terms of the MIT license. For a copy, see <https://opensource.org/licenses/MIT>.
+
 FROM alpine:3.10.3
 
 RUN apk add --no-cache tftp-hpa

README.md

@@ -86,7 +86,8 @@ See the repository on <https://github.com/kalaksi/docker-tftpd>.
 All kinds of contributions are welcome!
 
 ### License
-View [license information](https://github.com/kalaksi/docker-tftpd/blob/master/LICENSE) for the software contained in this image.  
-As with all Docker images, these likely also contain other software which may be under other licenses (such as Bash, etc from the base distribution, along with any direct or indirect dependencies of the primary software being contained).  
+Copyright (c) 2018 [email protected]. See [LICENSE](https://github.com/kalaksi/docker-airsonic/blob/master/LICENSE) for license information.  
+
+As with all Docker images, the built image likely also contains other software which may be under other licenses (such as software from the base distribution, along with any direct or indirect dependencies of the primary software being contained).  
 
 As for any pre-built image usage, it is the image user's responsibility to ensure that any use of this image complies with any relevant licenses for all software contained within.