Add some @since declarations

Text/Inflections/Types.hs

@@ -45,6 +45,8 @@ import Prelude hiding (Word)
 
 -- | Create a word from given 'Text'. The input should not contain spaces or
 -- 'InflectionInvalidWord' will be thrown.
+--
+-- @since 0.3.0.0
 
 mkWord :: MonadThrow m => Text -> m (Word 'Normal)
 mkWord txt =
@@ -55,6 +57,8 @@ mkWord txt =
 -- | Create an acronym from given 'Text'. The input should not contain
 -- spaces or 'InflectionInvalidAcronym' will be thrown. Acronym is different
 -- from normal word by that it may not be transformed by inflections.
+--
+-- @since 0.3.0.0
 
 mkAcronym :: MonadThrow m => Text -> m (Word 'Acronym)
 mkAcronym txt =
@@ -63,6 +67,7 @@ mkAcronym txt =
     else return (Word txt)
 
 -- | A 'Text' value that should be kept whole through applied inflections.
+
 data Word (t :: WordType) = Word Text
   deriving (Eq, Ord)
 
@@ -73,16 +78,23 @@ instance Show (Word 'Acronym) where
   show (Word x) = "Acronym " ++ show x
 
 -- | A type-level tag for words.
+--
+-- @since 0.3.0.0
 
 data WordType = Normal | Acronym
 
 -- | Get a 'Text' value from 'Word'.
+--
+-- @since 0.3.0.0
+
 unWord :: Word t -> Text
 unWord (Word s) = s
 
 -- | An existential wrapper that allows to keep words and acronyms in single
 -- list for example. The only thing that receiver of 'SomeWord' can do is to
 -- apply 'unWord' on it, of course. This is faciliated by 'unSomeWord'.
+--
+-- @since 0.3.0.0
 
 data SomeWord where
   SomeWord :: (Transformable (Word t), Show (Word t)) => Word t -> SomeWord
@@ -96,6 +108,8 @@ instance Show SomeWord where
 
 -- | Extract 'Text' from 'SomeWord' and apply given function only if the
 -- word inside wasn't an acronym.
+--
+-- @since 0.3.0.0
 
 unSomeWord :: (Text -> Text) -> SomeWord -> Text
 unSomeWord f (SomeWord w) = transform f w
@@ -112,6 +126,8 @@ instance Transformable (Word 'Acronym) where
   transform _ = unWord
 
 -- | The exceptions that is thrown when parsing of input fails.
+--
+-- @since 0.3.0.0
 
 data InflectionException
   = InflectionParsingFailed (ParseError Char Dec)