docs: update cover, title, and copyright.

docs/conf.py

@@ -1,12 +1,13 @@
 import os, sys
 sys.path.insert(0, os.path.abspath("."))
 
+import time
 import amaranth
 
-project = "Amaranth HDL toolchain"
+project = "Amaranth language & toolchain"
 version = amaranth.__version__.replace(".editable", "")
 release = version.split("+")[0]
-copyright = "2020—2023, Amaranth HDL developers"
+copyright = time.strftime("2020—%Y, Amaranth project contributors")
 
 extensions = [
 	"sphinx.ext.intersphinx",

docs/cover.rst

@@ -1,8 +1,11 @@
-Amaranth HDL documentation
-##########################
+.. This page is loaded if you click on the Amaranth logo.
+
+Amaranth project documentation
+##############################
 
 .. toctree::
    :maxdepth: 1
 
    index
-   Board definitions <https://amaranth-lang.org/docs/amaranth-boards/latest/>
+   Standard I/O components <https://amaranth-lang.org/docs/amaranth-stdio/latest/>
+   System on Chip toolkit <https://amaranth-lang.org/docs/amaranth-soc/latest/>