Update README.md

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@ -2,3 +2,119 @@ ProxHTTPSProxyMII
 =================

 A Proxomitron SSL Helper Program, can also be used to make a HTTP proxy like Privoxy capable of filtering HTTPS.
+
+How it works
+----
+
+![how it works](http://www.proxfilter.net/proxhttpsproxy/HowItWorks.gif)
+
+Eligible HTTP Proxies
+----
+
+* The [Proxomitron](http://www.proxomitron.info), for which ProxHTTPSProxy was created :)
+* Any that have the ability to forward all requests with a "Tagged:ProxHTTPSProxyMII FrontProxy/*" header to the ProxHTTPSProxyMII rear server.
+* Any that can be ran as two instances, one for true http and another for "tagged" http
+* Any that will only be used to monitor https traffic  
+
+Install
+----
+
+* ProxHTTPSProxy's "CA.crt" to the Client's store of trusted certificate authorities.
+
+Configure
+----
+
+* The Client to use the ProxHTTPSProxy front server at 127.0.0.1 on port 8079 for secure connections.
+* The HTTP proxy to receive requests at 127.0.0.1 on port 8080.
+* The HTTP proxy to forward requests to the ProxHTTPSProxy rear server at 127.0.0.1 on port 8081.
+* Edit "Config.ini" to change these requirements.
+
+Execute
+----
+
+ProxHTTPSProxy.exe to start.
+
+Remember
+----
+
+Be aware and careful! Use a direct connection when you don't want any mistakes made.
+
+Use at your own risk!
+
+Have fun!
+
+Discuss
+----
+
+<http://prxbx.com/forums/showthread.php?tid=2172>
+
+Author
+----
+
+* phoenix (aka whenever)
+* JJoe (test and doc)
+
+Proxomitron Tips
+================
+
+To use
+----
+
+* Add the ProxHTTPSProxy rear server to the Proxomitron's list of external proxies
+
+  `127.0.0.1:8081 ProxHTTPSProxyMII`
+
+* Add to Proxomitron's "Bypass URLs that match this expression" field if it is empty
+
+  `$OHDR(Tagged:ProxHTTPSProxyMII FrontProxy/*)$SETPROXY(127.0.0.1:8081)(^)`
+
+* Add to the beginning of the entry in Proxomitron's "Bypass URLs that match this expression" field if it is **not** empty
+
+  `$OHDR(Tagged:ProxHTTPSProxyMII FrontProxy/*)$SETPROXY(127.0.0.1:8081)(^)|` 
+
+Tips
+----
+
+* Proxomitron always executes some commands in "Bypass URLs that match this expression" field. Adding the entry there allows the Proxomitron to use the rear server when in Bypass mode.
+
+  This undocumented feature brings many possibilities but remember, an actual match triggers bypass of filtering!
+  
+  - `$OHDR(Tagged:ProxHTTPSProxyMII FrontProxy/*)` checks for the header that indicates an https request.
+  - `$SETPROXY(127.0.0.1:8081)` is executed when found.
+  - `(^)` expression never matches. 
+
+* Identify https connections by testing for the "Tagged" request header that the ProxHTTPSProxy front server adds to the request. 
+
+  `$OHDR(Tagged:ProxHTTPSProxyMII FrontProxy/*)`
+
+* For local file requests, use an expression like 
+
+  `$USEPROXY(false)$RDIR(http://local.ptron/killed.gif)`
+
+* Before redirecting "Tagged" connections to external resources consider removing the "Tagged" header. 
+
+* If needed, the Proxomitron can still do https. After adding the ssl files to the Proxomitron, use a header filter like
+
+  ```
+  [HTTP headers]
+  In = FALSE
+  Out = TRUE
+  Key = "Tagged: Use Proxomitron for https://badcert.com"
+  URL = "badcert.com$OHDR(Tagged:ProxHTTPSProxyMII FrontProxy/*)$USEPROXY(false)$RDIR(https://badcert.com)"
+  ```
+  This filter also removes the "Tagged" header. 
+
+For the current sidki set
+----
+
+1. Add the following two lines to Exceptions-U
+
+  ```
+  $OHDR(Tagged:ProxHTTPSProxyMII FrontProxy/*)$SET(keyword=$GET(keyword)i_proxy:3.)(^)
+  ~(^$TST(keyword=i_proxy:[03].))$OHDR(Tagged:ProxHTTPSProxyMII FrontProxy/*)$SET(keyword=$GET(keyword)i_proxy:3.)(^)
+  ```
+
+2. Redirect connections to http resources with an expression like
+
+  `$USEPROXY(false)$SET(keyword=i_proxy:0.)$RDIR(http://local.ptron/killed.gif)`
+