Merge pull request #3329 from khurramkhalil/patch-1

Added missing punctuation mark

docs/source/usage/transformation.rst

@@ -15,7 +15,7 @@ geodetic transformations of varying complexity can be performed.
 In PROJ, two frameworks for geodetic transformations exists, the
 *PROJ 4.x/5.x* / :program:`cs2cs` / :c:func:`pj_transform`
 framework and the *transformation pipelines* framework. The first is the original,
-and limited, framework for doing geodetic transforms in PROJ The latter is a
+and limited, framework for doing geodetic transforms in PROJ. The latter is a
 newer addition that aims to be a more complete transformation framework. Both are
 described in the sections below. Large portions of the text are based on
 :cite:`EversKnudsen2017`.