fix typos and links

Envelope_2/doc/Envelope_2/Concepts/EnvelopeDiagramEdge.h

@@ -70,12 +70,12 @@ returns a representative \f$ x\f$-monotone curve associated with `e`.
 const X_monotone_curve_2& curve () const; 
 
 /*! 
-return an iterator for the first \f$ x\f$-monotone curve associated with `e`. 
+returns an iterator for the first \f$ x\f$-monotone curve associated with `e`. 
 */ 
 Curve_const_iterator curves_begin () const; 
 
 /*! 
-return a past-the-end iterator for the \f$ x\f$-monotone curves associated with `e`. 
+returns a past-the-end iterator for the \f$ x\f$-monotone curves associated with `e`. 
 */ 
 Curve_const_iterator curves_end () const; 
 

Envelope_2/doc/Envelope_2/Concepts/EnvelopeDiagramVertex.h

@@ -75,12 +75,12 @@ returns the number of \f$ x\f$-monotone curves associated with `v`.
 Size number_of_curves () const; 
 
 /*! 
-return an iterator for the first \f$ x\f$-monotone curve associated with `v`. 
+returns an iterator for the first \f$ x\f$-monotone curve associated with `v`. 
 */ 
 Curve_const_iterator curves_begin () const; 
 
 /*! 
-return a past-the-end iterator for the \f$ x\f$-monotone curves associated with `v`. 
+returns a past-the-end iterator for the \f$ x\f$-monotone curves associated with `v`. 
 */ 
 Curve_const_iterator curves_end () const; 
 

Envelope_2/doc/Envelope_2/Envelope_2.txt

@@ -76,11 +76,11 @@ traversing both diagrams in parallel.
 \section env2_secenv_diag The Envelope Diagram 
 
 The package basically contains two sets of free functions:
-`lower_envelope_x_monotone_2 (begin, end, diag)` (similarly
-`upper_envelope_x_monotone_2()`) construct the envelope diagram
+\link lower_envelope_x_monotone_2() `lower_envelope_x_monotone_2(begin, end, diag)`\endlink 
+(similarly `upper_envelope_x_monotone_2()`) construct the envelope diagram
 for a given range of \f$ x\f$-monotone curves, while 
-`lower_envelope_2 (begin, end, diag)` (similarly
-`upper_envelope_2()`) construct the envelope diagram for a
+\link lower_envelope_x_monotone_2() `lower_envelope_2(begin, end, diag)`\endlink 
+(similarly `upper_envelope_2()`) construct the envelope diagram for a
 range of <I>arbitrary</I> (not necessarily \f$ x\f$-monotone) curves.
 In this section we explain more on the structure of the envelope
 diagram these functions output.

Point_set_processing_3/doc/Point_set_processing_3/Point_set_processing_3.txt

@@ -57,6 +57,7 @@ from the \cgal 3D point, or as a `std::pair<Point_3<K>, Vector_3<K>>`,
 or as a `boost::tuple<..,Point_3<K>, ..., Vector_3<K> >`.
 
 The following classes described in Chapter \ref chapterProperty_map
+"CGAL and Boost Property Maps"
 provide property maps for the implementations of points with normals
 listed above:
 
@@ -160,7 +161,7 @@ Point set simplification through grid-based clustering. Removed points are depic
 \section Point_set_processing_3Smoothing Smoothing
 
 
-Function `jet_smooth_point_set` smooths the input point set by
+Function `jet_smooth_point_set()` smooths the input point set by
 projecting each point onto a smooth parametric surface patch
 (so-called jet surface) fitted over its `k` nearest neighbors.
 

Ridges_3/doc/Ridges_3/Ridges_3.txt

@@ -115,7 +115,7 @@ by \f$ x\f$ (resp. \f$ y\f$) are:
 \anchor eqtaylor_along_line
 \f[
 \begin{equation}
-k_1(x) = k_1 + b_0x + \frac{P_1}{2(k_1-k_2)}x^2 +\hot , \quad \quad \quad
+k_1(x) = k_1 + b_0x + \frac{P_1}{2(k_1-k_2)}x^2 + ... , \quad \quad \quad
 P_1= 3b_1^2+(k_1-k_2)(c_0-3k_1^3).
 \end{equation}
 \f]
@@ -123,7 +123,7 @@ P_1= 3b_1^2+(k_1-k_2)(c_0-3k_1^3).
 \anchor eqtaylor_along_red_line
 \f[
 \begin{equation}
-k_2(y) = k_2 + b_3y + \frac{P_2}{2(k_2-k_1)}y^2 +\hot , \quad \quad \quad
+k_2(y) = k_2 + b_3y + \frac{P_2}{2(k_2-k_1)}y^2 + ... , \quad \quad \quad
 P_2= 3b_2^2+(k_2-k_1)(c_4-3k_2^3).
 \end{equation}
 \f]

Snap_rounding_2/doc/Snap_rounding_2/CGAL/Snap_rounding_2.h

@@ -3,7 +3,7 @@ namespace CGAL {
 /*!
 \ingroup PkgSnapRounding2
 
-The first two parameters denote the first and after-the-last iterators 
+The first two parameters denote the first and past-the-end iterators 
 of the input segments. The third parameter is a reference to a 
 container of the output polylines. Since a polyline is composed of a 
 sequence of points, a polyline is a container itself. The fifth