misspellings fixes by https://github.com/vlajos/misspell_fixer
diff --git a/demos/easy_tls/easy-tls.c b/demos/easy_tls/easy-tls.c
index 9cd8314..864017d 100644
--- a/demos/easy_tls/easy-tls.c
+++ b/demos/easy_tls/easy-tls.c
@@ -971,7 +971,7 @@
     
     /* loop finishes as soon as we detect that one side closed;
      * when all (program and OS) buffers have enough space,
-     * the data from the last succesful read in each direction is transferred
+     * the data from the last successful read in each direction is transferred
      * before close */
     do {
 	int clear_read_select = 0, clear_write_select = 0,