Fix hex/dec error

Signed-off-by: Thomas Ackermann <[email protected]>

Author: tacker66

book/10-git-internals/sections/transfer-protocols.asc

@@ -155,7 +155,7 @@ The `git-receive-pack` command immediately responds with one line for each refer
 The first line also has a list of the server's capabilities (here, `report-status`, `delete-refs`, and some others, including the client identifier).
 
 Each line starts with a 4-character hex value specifying how long the rest of the line is.
-Your first line starts with 005b, which is 91 in hex, meaning that 91 bytes remain on that line.
+Your first line starts with 005b, which is hexadecimal for 91, meaning that 91 bytes remain on that line.
 The next line starts with 003e, which is 62, so you read the remaining 62 bytes.
 The next line is 0000, meaning the server is done with its references listing.