And another symbol.

docs/src/manifolds/connection.md

@@ -1,6 +1,6 @@
 # [Connection manifold](@id ConnectionSection)
 
-A connection manifold always consists of a [topological manifold](https://en.wikipedia.org/wiki/Topological_manifold) together with a [connection](https://en.wikipedia.org/wiki/Connection_(mathematics)) ``\Gamma``.
+A connection manifold always consists of a [topological manifold](https://en.wikipedia.org/wiki/Topological_manifold) together with a [connection](https://en.wikipedia.org/wiki/Connection_(mathematics)) ``Γ``.
 
 However, often there is an implicitly assumed (default) connection, like the [`LeviCivitaConnection`](@ref) connection on a Riemannian manifold.
 It is not necessary to use this decorator if you implement just one (or the first) connection.