Fix max theorical date in the README (#65)

From what I understood in my tests and in #9, the max possible base32 timestamp is `7ZZZZZZZZZ`. Consequently, the current max year in the README is wrong.
oklog · Jan 27, 2021 · e7ac4de · e7ac4de
1 parent 62a36b9
commit e7ac4de
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -97,7 +97,7 @@ Below is the current specification of ULID as implemented in this repository.
 **Timestamp**
 - 48 bits
 - UNIX-time in milliseconds
-- Won't run out of space till the year 10895 AD
+- Won't run out of space till the year 10889 AD
 
 **Entropy**
 - 80 bits