Add generic description for 'meta' package

source/tanya/meta/metafunction.d

@@ -3,8 +3,11 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /**
- * This module contains functions that manipulate template type lists as well
- * as algorithms to perform arbitrary compile-time computations.
+ * This module is suited for computations on template arguments, both types and
+ * values at compile time.
+ *
+ * It contains different algorithms for iterating, searching and modifying
+ * template arguments.
  *
  * Copyright: Eugene Wissner 2017.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,

source/tanya/meta/package.d

@@ -5,6 +5,10 @@
 /**
  * Template metaprogramming.
  *
+ * This package contains utilities to acquire type information at compile-time,
+ * to transform from one type to another. It has also different algorithms for
+ * iterating, searching and modifying template arguments.
+ *
  * Copyright: Eugene Wissner 2017.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).