Add examples to Socket::Server#accept API docs

src/socket/server.cr

@@ -2,12 +2,33 @@ class Socket
   module Server
     # Accepts an incoming connection and returns the client socket.
     #
+    # ```
+    # require "socket"
+    #
+    # server = TCPServer.new(2202)
+    # while true
+    #   socket = server.accept
+    #   socket.puts Time.utc_now
+    #   socket.close
+    # end
+    # ```
+    #
     # If the server is closed after invoking this method, an `IO::Error` (closed stream) exception must be raised.
     abstract def accept : Socket
 
     # Accepts an incoming connection and returns the client socket.
     #
     # Returns `nil` if the server is closed after invoking this method.
+    #
+    # ```
+    # require "socket"
+    #
+    # server = TCPServer.new(2202)
+    # while socket = server.accept?
+    #   socket.puts Time.utc_now
+    #   socket.close
+    # end
+    # ```
     abstract def accept? : Socket?
 
     # Accepts an incoming connection and yields the client socket to the block.