docs: use neutral proxyhost:port examples

Replace ProxyMesh-specific proxy host examples with placeholder proxyhost:port values across README and docs.

Made-with: Cursor

Author: Cursor

README.md

@@ -122,10 +122,12 @@ Same environment variables as [python-proxy-headers](https://github.com/proxymes
 ```bash
 cd ruby-proxy-headers
 bundle install
-export PROXY_URL=http://us-ca.proxymesh.com:31280
+export PROXY_URL=http://user:pass@proxyhost:port
 bundle exec ruby test/test_proxy_headers.rb -v
 ```
 
+Use a placeholder proxy host in examples, e.g. `http://user:pass@proxyhost:port`.
+
 ## Documentation
 
 - [Library research](LIBRARY_RESEARCH.md) — proxy header support by client

docs/faraday.md

@@ -110,7 +110,7 @@ session_id = "session-#{SecureRandom.hex(8)}"
 
 conn = Faraday.new do |f|
   f.use RubyProxyHeaders::Faraday::Middleware,
-        proxy: 'http://user:pass@us.proxymesh.com:31280',
+        proxy: 'http://user:pass@proxyhost:port',
         proxy_headers: { 'X-ProxyMesh-Session' => session_id }
   f.adapter Faraday.default_adapter
 end

docs/httparty.md

@@ -120,7 +120,7 @@ class IPChecker
   base_uri 'https://api.ipify.org'
   format :json
 
-  http_proxy 'us.proxymesh.com', 31280, ENV['PROXY_USER'], ENV['PROXY_PASS']
+  http_proxy 'proxyhost', 1234, ENV['PROXY_USER'], ENV['PROXY_PASS']
   proxy_headers 'X-ProxyMesh-Session' => 'persistent'
 
   def self.check_ip

docs/net-http.md

@@ -114,7 +114,7 @@ response.proxy_response_headers  # Headers from proxy CONNECT response
 require 'ruby_proxy_headers'
 require 'json'
 
-proxy_url = 'http://user:pass@us.proxymesh.com:31280'
+proxy_url = 'http://user:pass@proxyhost:port'
 
 response = RubyProxyHeaders::NetHTTP.get(
   'https://api.ipify.org?format=json',