minor : show in table that frame checksum is optional

diff --git a/lz4_Frame_format.md b/lz4_Frame_format.md
index 73d3cba..e600c10 100644 (file)
--- a/lz4_Frame_format.md
+++ b/lz4_Frame_format.md
@@ -63,7 +63,7 @@ General Structure of LZ4 Frame format
 
 | MagicNb | F. Descriptor | Block | (...) | EndMark | C. Checksum |
 |:-------:|:-------------:| ----- | ----- | ------- | ----------- |
-| 4 bytes |  3-11 bytes   |       |       | 4 bytes |   4 bytes   | 
+| 4 bytes |  3-11 bytes   |       |       | 4 bytes | 0-4 bytes   | 
 
 __Magic Number__
 
@@ -382,4 +382,4 @@ Version changes
 
 0.5: added copyright notice
 
-0.4 : changed format to Google Doc compatible OpenDocument
\ No newline at end of file
+0.4 : changed format to Google Doc compatible OpenDocument