typo fixes in comments

server.go

@@ -500,7 +500,7 @@ type connTLSer interface {
 // tls.Conn is an encrypted connection (aka SSL, HTTPS).
 func (ctx *RequestCtx) IsTLS() bool {
 	// cast to (connTLSer) instead of (*tls.Conn), since it catches
-	// cases with overriden tls.Conn such as:
+	// cases with overridden tls.Conn such as:
 	//
 	// type customConn struct {
 	//     *tls.Conn

server_test.go

@@ -32,7 +32,7 @@ func TestRequestCtxIsTLS(t *testing.T) {
 		t.Fatalf("IsTLS must return false")
 	}
 
-	// overriden tls.Conn
+	// overridden tls.Conn
 	ctx.c = &struct {
 		*tls.Conn
 		fooBar bool