Add 3.6 to Chisel Website (#3183)

* Add 3.6 to Chisel Website

* [website] Remove chisel/ baseUrl

Remove the "chisel/" base URL from all website links.  This is no longer
necessary once the website changes to chisel-lang.org.

---------

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@sifive.com>

Author: seldridge

website/build.sbt

@@ -22,7 +22,7 @@ lazy val micrositeSettings = Seq(
   micrositeName := "Chisel/FIRRTL",
   micrositeDescription := "Chisel/FIRRTL\nHardware Compiler Framework",
   micrositeUrl := "https://chipsalliance.github.io/",
-  micrositeBaseUrl := "chisel",
+  micrositeBaseUrl := "",
   micrositeConfigYaml := ConfigYml(
     yamlCustomProperties = Map("plugins" -> Seq("jekyll-redirect-from"))
   ),

website/docs/src/main/resources/microsite/data/menu.yml

@@ -200,5 +200,7 @@ options:
     nested_options:
       - title: Latest
         url: api/chisel3/latest/
+      - title: 3.6
+        url: api/chisel3/3.6/
       - title: 3.5
         url: api/chisel3/3.5/

website/docs/src/main/tut/api/chisel3/3.6/index.md

@@ -0,0 +1,3 @@
+---
+redirect_to: https://javadoc.io/doc/edu.berkeley.cs/chisel3_2.13/3.6
+---

website/docs/src/main/tut/api/index.md

@@ -9,6 +9,5 @@ section: "chisel3"
 Please see the page about [Versioning](../chisel3/docs/appendix/versioning.html) for more information about major and minor versioning and binary compatibility.
 
 * [latest](latest)
+* [3.6](3.6/)
 * [3.5](3.5/)
-
-