1.9.0: Introduce JSON schema validation, add LICENSE (#66)

* Verify JSON schema on send mails endpoint (#61).

* Bump version to `1.9.0`.

* Add LICENSE (#62).

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) janjaali and Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -46,7 +46,7 @@ SendGrid-Mock serves as a simple server mocking the sendgrid-apis for developmen
 The SendGrid-Mock server and the UI are both contained in the same docker-image which you can pull from [Docker Hub](https://cloud.docker.com/u/ghashange/repository/docker/ghashange/sendgrid-mock) and start it via:
 
 ```shell
-docker run -it -p 3000:3000 -e "API_KEY=sendgrid-api-key" ghashange/sendgrid-mock:1.8.4
+docker run -it -p 3000:3000 -e "API_KEY=sendgrid-api-key" ghashange/sendgrid-mock:1.9.0
 ```
 
 Some prepared HTTP calls can be found [here](./http-calls).
@@ -58,7 +58,7 @@ The UI can be accessed at <http://localhost:3000>.
 SendGrid-Mock also supports SSL using [Let's Encrypt](https://letsencrypt.org/). To enable SSL, run it as follows:
 
 ```shell
-docker run -it -p 3000:3000 -e "API_KEY=sendgrid-api-key" -e "CERT_DOMAINNAMES=[your-domain-name]" -e "CERT_EMAIL=[your-email-address]" ghashange/sendgrid-mock:1.8.4
+docker run -it -p 3000:3000 -e "API_KEY=sendgrid-api-key" -e "CERT_DOMAINNAMES=[your-domain-name]" -e "CERT_EMAIL=[your-email-address]" ghashange/sendgrid-mock:1.9.0
 ```
 
 ## Development
@@ -71,7 +71,7 @@ The UI can be accessed at <http://localhost:3000>.
 
 ### Build
 
-Create docker image with `docker build -t ghashange/sendgrid-mock:1.8.4 .`.
+Create docker image with `docker build -t ghashange/sendgrid-mock:1.9.0 .`.
 
 ### Release