Fix typos in comments.

Fix #1284.

Thank you @cclauss!

src/websockets/frames.py

@@ -127,7 +127,7 @@ class Frame:
 
     def __str__(self) -> str:
         """
-        Return a human-readable represention of a frame.
+        Return a human-readable representation of a frame.
 
         """
         coding = None
@@ -389,7 +389,7 @@ class Close:
 
     def __str__(self) -> str:
         """
-        Return a human-readable represention of a close code and reason.
+        Return a human-readable representation of a close code and reason.
 
         """
         if 3000 <= self.code < 4000:

src/websockets/legacy/protocol.py

@@ -1120,7 +1120,7 @@ async def read_data_frame(self, max_size: Optional[int]) -> Optional[Frame]:
                 try:
                     # Echo the original data instead of re-serializing it with
                     # Close.serialize() because that fails when the close frame
-                    # is empty and Close.parse() synthetizes a 1005 close code.
+                    # is empty and Close.parse() synthesizes a 1005 close code.
                     await self.write_close_frame(self.close_rcvd, frame.data)
                 except ConnectionClosed:
                     # Connection closed before we could echo the close frame.

src/websockets/protocol.py

@@ -653,7 +653,7 @@ def recv_frame(self, frame: Frame) -> None:
             if self.state is OPEN:
                 # Echo the original data instead of re-serializing it with
                 # Close.serialize() because that fails when the close frame
-                # is empty and Close.parse() synthetizes a 1005 close code.
+                # is empty and Close.parse() synthesizes a 1005 close code.
                 # The rest is identical to send_close().
                 self.send_frame(Frame(OP_CLOSE, frame.data))
                 self.close_sent = self.close_rcvd

src/websockets/server.py

@@ -512,7 +512,7 @@ def reject(
         response = Response(status.value, status.phrase, headers, body)
         # When reject() is called from accept(), handshake_exc is already set.
         # If a user calls reject(), set handshake_exc to guarantee invariant:
-        # "handshake_exc is None if and only if opening handshake succeded."
+        # "handshake_exc is None if and only if opening handshake succeeded."
         if self.handshake_exc is None:
             self.handshake_exc = InvalidStatus(response)
         self.logger.info("connection failed (%d %s)", status.value, status.phrase)