Revert "Move the doc tree out into its own repo."

This reverts commit 8f88fcedd6.

doc-src/features/sticky.html

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+
+## Sticky cookies
+
+When the sticky cookie option is set, __mitmproxy__ will add the cookie most
+recently set by the server to any cookie-less request. Consider a service that
+sets a cookie to track the session after authentication. Using sticky cookies,
+you can fire up mitmproxy, and authenticate to a service as you usually would
+using a browser. After authentication, you can request authenticated resources
+through mitmproxy as if they were unauthenticated, because mitmproxy will
+automatically add the session tracking cookie to requests. Among other things,
+this lets you script interactions with authenticated resources (using tools
+like wget or curl) without having to worry about authentication. 
+
+Sticky cookies are especially powerful when used in conjunction with [client
+replay](@!urlTo("clientreplay.html")!@) - you can record the authentication
+process once, and simply replay it on startup every time you need to interact
+with the secured resources.
+
+<table class="table">
+    <tbody>
+        <tr>
+            <th width="20%">command-line</th>
+            <td>
+                <ul>
+                    <li>-t FILTER</li>
+                </ul>
+            </td>
+        </tr>
+        <tr>
+            <th>mitmproxy shortcut</th> <td><b>t</b></td>
+        </tr>
+    </tbody>
+</table>
+
+
+## Sticky auth
+
+The sticky auth option is analogous to the sticky cookie option, in that HTTP
+__Authorization__ headers are simply replayed to the server once they have been
+seen. This is enough to allow you to access a server resource using HTTP Basic
+authentication through the proxy. Note that __mitmproxy__ doesn't (yet) support
+replay of HTTP Digest authentication. 
+
+<table class="table">
+    <tbody>
+        <tr>
+            <th width="20%">command-line</th>
+            <td>
+                <ul>
+                    <li>-u FILTER</li>
+                </ul>
+            </td>
+        </tr>
+        <tr>
+            <th>mitmproxy shortcut</th> <td><b>u</b></td>
+        </tr>
+    </tbody>
+</table>
+
+