Ignore zmk snapshot

Signed-off-by: Zygmunt Krynicki <me@zygoon.pl>

Author: zyga

.gitignore

@@ -18,6 +18,7 @@ examples/test-root-user.exe
 
 # Release archives
 libzt_*.tar.gz
+libzt_*.tar.gz.asc
 libzt_*.zip
 
 # The test program
@@ -50,9 +51,14 @@ libzt-test.exe
 pvs-report/
 
 # Configured in-tree build
+configure
 GNUmakefile.configure.mk
 .version-from-git
 
+# Build system snapshot
+z.mk
+zmk
+
 # Manual pages
 man/*.[123456789]