Migrate content from wiki

doc/asciidoc.css

-/* Copyright 2015 The Crashpad Authors. All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License. */
-
-/* The default AsciiDoc asciidoc.css specifies fuchsia as the visited link
- * color. This has a dated appearance. Replace it with blue, the same color used
- * for unvisited links. */
-a:visited {
-  color: blue;
-}