Use grab (not obtain) before obtaining

doc/how-to-source-packages.rst

@@ -13,7 +13,7 @@ dependencies from a **source code repository** by adding a
 Getting package *source code* without Cabal
 -------------------------------------------
 
-There are two ways to obtain the *source code* for a package manually; from a
+There are two ways to grab the *source code* for a package manually; from a
 **source code repository** such as GitHub [#]_ or from a **package repository**
 such as Hackage.  Cabal automates these two ways of obtaining the *source code*.
 This is described in the :ref:`package consumer<pkg-consumers>` section.