README.md in smart_container-0.4.0 vs README.md in smart_container-0.5.0

@@ -68,10 +68,23 @@
 # but you can fetch any depenendency type (internal containers and values) via #fetch
 container.fetch('database') # => SmartCore::Container (nested container)
 container.fetch('database.resolver') # => #<SomeDatabaseResolver:0x00007f0f0f1d6332>
 ```
 
+- runtime-level dependency/namespace registration:
+
+```ruby
+container.namespace(:api) do
+  register(:provider) { GoogleProvider }
+end
+
+container.register('game_api') { 'overwatch' }
+
+container['api.provider'] # => GoogleProvider
+container['game_api'] # => 'overwatch'
+```
+
 - container keys (dependency names):
 
 ```ruby
 # get dependnecy keys (only dependencies)
 container.keys
@@ -95,9 +108,45 @@
   'database.cache.memcached',
   'database.cache.redis',
   'logger',
   'random'
 ]
+```
+
+- key predicates:
+  - `key?(key)` - has dependency or namespace?
+  - `namespace?(path)` - has namespace?
+  - `dependency?(path)` - has dependency?
+  - `dependency?(path, memoized: true)` - has memoized dependency?
+  - `dependency?(path, memoized: false)` - has non-memoized dependency?
+
+```ruby
+container.key?('database') # => true
+container.key?('database.cache.memcached') # => true
+
+container.dependency?('database') # => false
+container.dependency?('database.resolver') # => true
+
+container.namespace?('database') # => true
+container.namespace?('database.resolver') # => false
+
+container.dependency?('database.resolver', memoized: true) # => true
+container.dependency?('database.resolver', memoized: false) # => false
+
+container.dependency?('random', memoized: true) # => false
+container.dependency?('random', memoized: false) # => true
+```
+
+- state freeze:
+
+```ruby
+# documentation is coming;
+```
+
+- reloading:
+
+```ruby
+# documentation is coming;
 ```
 
 ---
 
 ## Contributing