Fix some infos in changes.txt

docs/changes.txt

@@ -2,7 +2,7 @@
 
 The hashcat core was completely refactored into a library (libhashcat).
 This should help developers to include hashcat into distributed clients or GUI frontends (see main_shared.c for a quick start).
-The CLI (hashcat.bin or hashcat.exe) works as before but from a technically perspective it's a library frontend.
+The CLI (hashcat.bin or hashcat.exe) works as before but from a technical perspective it's a library frontend.
 
 ##
 ## Features
@@ -30,9 +30,9 @@ The CLI (hashcat.bin or hashcat.exe) works as before but from a technically pers
 ## Algorithms
 ##
 
-- Reduce maximum number of allowed function calls per rule from 256 to 32 to save device memory
+- Reduce maximum number of allowed function calls per rule from 255 to 31 to save device memory
 - Workaround for some OpenCL kernels to compile with AMDGPU-Pro Driver
-- Allow words of length > 32 in wordlists for -a 0 for some slow hashes if no rules are in use
+- Allow words of length > 31 in wordlists for -a 0 for some slow hashes if no rules are in use
 - Allow loading of bcrypt hashes with signature $2b$ (February 2014)
 - Added new hash-mode 14000 = DES (PT = $salt, key = $pass)
 - Added new hash-mode 14100 = 3DES (PT = $salt, key = $pass)