Fix link to latest development version

fixes #1814
[skip ci]

README.adoc

@@ -5,7 +5,7 @@ image::docs/images/FMI_logo_horizontal.svg[width=30%,align="center"]
 The Functional Mock-up Interface (FMI) is a free standard that defines an interface to exchange dynamic models using a combination of XML files, binaries and C code.
 It's supported by https://fmi-standard.org/tools/[170+] tools and maintained as a https://modelica.org/projects[Modelica Association Project].
 
-https://fmi-standard.org/downloads/[Releases] and the https://fmi-standard.org/docs/3.0-dev/[latest development version] of the specification are available on the https://fmi-standard.org/[FMI website].
+Releases and the https://fmi-standard.org/docs/main/[latest development version] of the specification are available on the https://fmi-standard.org/[FMI website].
 
 == Repository Structure