Updated comments in .yml files

Signed-off-by: Dimitris Zlatanidis <d.zlatanidis@gmail.com>

configs/blacklist.yml

@@ -1,2 +1,4 @@
 blacklist:
+
+  # Add packages and separate them with commas.
   packages: []

configs/slpkg.yml

@@ -1,8 +1,8 @@
 configs:
-  # OS architecture by default
+  # OS architecture by default.
   os_arch: x86_64
 
-  # All necessary paths
+  # All necessary paths.
   tmp_path: /tmp
   tmp_slpkg: /tmp/slpkg
   build_path: /tmp/slpkg/build
@@ -13,22 +13,22 @@ configs:
   sbo_repo_path: /var/lib/slpkg/repository
   log_packages: /var/log/packages
 
-  # Database name
+  # Database name.
   database: database.slpkg
 
-  # SBo repository configs
+  # SBo repository configs.
   sbo_repo_url: http://slackbuilds.org/slackbuilds/15.0
   sbo_txt: SLACKBUILDS.TXT
   sbo_tar_suffix: .tar.gz
   sbo_repo_tag: _SBo
 
-  # Slackware commands
+  # Slackware commands.
   installpkg: upgradepkg --install-new
   reinstall: upgradepkg --reinstall
   removepkg: removepkg
 
-  # Cli menu colors configs
+  # Cli menu colors configs.
   colors: on
 
-  # Wget options
+  # Wget options.
   wget_options: -c -N