Correct link to standalone JAR (#1244)
Correct link to standalone JAR (#1244)

Link to download standalone JAR from Maven central was using HTTP rather than HTTPS.

The HTTP URL now gives a `501` error:

> 501 HTTPS Required. 
> Use https://repo1.maven.org/maven2/
>More information at https://links.sonatype.com/central/501-https-required
tomakehurst/wiremock,dlaha21/wiremock,Mahoney/wiremock,tomakehurst/wiremock,tomakehurst/wiremock,tomakehurst/wiremock,dlaha21/wiremock,dlaha21/wiremock,Mahoney/wiremock,dlaha21/wiremock,Mahoney/wiremock,tomakehurst/wiremock,dlaha21/wiremock,Mahoney/wiremock,Mahoney/wiremock