Slight update to our downloads page (#2190).

doc/downloads/index.js

@@ -37,6 +37,7 @@ var jsonData = { "versions": [
                        }
                      ],
                      "changes": [
+                       { "change": "<strong>CellML Annotation view:</strong> use the new <a href=\"https://identifiers.org/\">identifiers.org</a> platform (see issue <a href=\"https://github.com/opencor/opencor/issues/2190\">#2190</a>)." },
                        { "change": "<strong>Third-party libraries:</strong> upgraded <a href=\"https://libgit2.github.com/\">libgit2</a> to version 0.99.0 (see issue <a href=\"https://github.com/opencor/opencor/issues/2305\">#2305</a>). Upgraded <a href=\"https://riverbankcomputing.com/software/qscintilla/intro\">QScintilla</a> to version 2.11.4 (see issue <a href=\"https://github.com/opencor/opencor/issues/2307\">#2307</a>). Upgraded <a href=\"https://mesa3d.org/\">Mesa</a> to version 20.0.2 (see issue <a href=\"https://github.com/opencor/opencor/issues/2311\">#2311</a>). Upgraded <a href=\"https://llvm.org/\">LLVM</a>+<a href=\"https://clang.llvm.org/\">Clang</a> to version 10.0.0 (see issue <a href=\"https://github.com/opencor/opencor/issues/2314\">#2314</a>). Upgraded the <a href=\"https://openssl.org/\">OpenSSL</a> library to version 1.1.1f (see issue <a href=\"https://github.com/opencor/opencor/issues/2318\">#2318</a>)." }
                      ]
                    },