add missing upper case letters

Circular_kernel_3/doc/Circular_kernel_3/PackageDescription.txt

@@ -40,7 +40,7 @@
 
 - `SphericalKernel`
 
-\cgalCRPSubsection{Object types}
+\cgalCRPSubsection{Object Types}
 
 - `SphericalKernel::CircularArc_3`
 - `SphericalKernel::CircularArcPoint_3`

Interpolation/doc/Interpolation/PackageDescription.txt

@@ -88,11 +88,11 @@ User Manual \endlink.
 - `CGAL::Interpolation_traits_2<K>`
 - `CGAL::Interpolation_gradient_fitting_traits_2<K>`
 
-\cgalCRPSection{Natural neighbor coordinate computation}
+\cgalCRPSection{Natural Neighbor Coordinate Computation}
 - `CGAL::natural_neighbor_coordinates_2()`
 - `CGAL::regular_neighbor_coordinates_2()`
 
-\cgalCRPSection{Surface neighbor and surface neighbor coordinate computation}
+\cgalCRPSection{Surface Neighbor and Surface Neighbor Coordinate Computation}
 - `CGAL::Voronoi_intersection_2_traits_3<K>`
 - `CGAL::surface_neighbor_coordinates_3()`
 - `CGAL::surface_neighbors_3()`

Linear_cell_complex/doc/Linear_cell_complex/PackageDescription.txt

@@ -74,7 +74,7 @@
 - `CGAL::compute_normal_of_cell_0<LCC>`
 - `CGAL::compute_normal_of_cell_2<LCC>`
 
-\cgalCRPSubsection{Draw a Linear cell complex}
+\cgalCRPSubsection{Draw a Linear Cell Complex}
 - `CGAL::draw<LCC>`
 
 */

Mesh_2/doc/Mesh_2/PackageDescription.txt

@@ -57,7 +57,7 @@ The package can handle intersecting input constraints  and set no restriction on
 - `CGAL::Delaunay_mesh_size_criteria_2<CDT>`
 - `CGAL::Mesh_2::Face_badness`
 
-\cgalCRPSection{Global functions}
+\cgalCRPSection{Global Functions}
 - `CGAL::make_conforming_Delaunay_2`
 - `CGAL::make_conforming_Gabriel_2`
 - `CGAL::refine_Delaunay_mesh_2`

Polytope_distance_d/doc/Polytope_distance_d/PackageDescription.txt

@@ -27,7 +27,7 @@ checking off, cf. Section  \ref secchecks.
 
 \cgalClassifedRefPages
 
-\cgalCRPSection{All furthest neighbors}
+\cgalCRPSection{All Furthest Neighbors}
 
 - `CGAL::all_furthest_neighbors_2`
 - `AllFurthestNeighborsTraits_2`