gh-39623: Fix spacing for documentation
    
Partially discussed in #39555.
Meanwhile I find a few more.

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- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies

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URL: #39623
Reported by: user202729
Reviewer(s): Frédéric Chapoton

Author: Release Manager

src/sage/combinat/dyck_word.py

@@ -368,7 +368,7 @@ def set_latex_options(self, D):
         - ``diagonal`` -- boolean (default: ``False``); value to draw the
           diagonal or not
 
-        - ``line width`` -- (default: 2*``tikz_scale``) value representing the
+        - ``line width`` -- (default: ``2*tikz_scale``) value representing the
           line width
 
         - ``color`` -- (default: black) the line color
@@ -676,7 +676,7 @@ def pretty_print(self, type=None, labelling=None, underpath=True):
         - ``labelling`` -- (if type is "N-E") a list of labels assigned to
           the up steps in ``self``
 
-        - ``underpath`` -- (if type is "N-E", default:``True``) if ``True``,
+        - ``underpath`` -- (if type is "N-E", default: ``True``) if ``True``,
           the labelling is shown under the path; otherwise, it is shown to
           the right of the path
 

src/sage/combinat/posets/posets.py

@@ -3462,7 +3462,7 @@ def is_EL_labelling(self, f, return_raising_chains=False):
           ``self`` such that ``b`` covers ``a`` and returning elements
           in a totally ordered set.
 
-        - ``return_raising_chains`` (optional; default:``False``) if
+        - ``return_raising_chains`` (optional; default: ``False``) if
           ``True``, returns the set of all raising chains in ``self``,
           if possible.
 

src/sage/dynamics/arithmetic_dynamics/projective_ds.py

@@ -6850,7 +6850,7 @@ def Lattes_to_curve(self, return_conjugation=False, check_lattes=False):
         ``return_conjugation`` -- (default: ``False``) if ``True``, then
         return the conjugation that moves self to a map that comes from a
         Short Weierstrass Model Elliptic curve
-        ``check_lattes``.-.(default:.``False``) if ``True``, then  will ValueError if not Lattes
+        ``check_lattes`` -- (default: ``False``) if ``True``, then  will ValueError if not Lattes
 
         OUTPUT: a Short Weierstrass Model Elliptic curve which is isogenous to
         the Elliptic curve of 'self',

src/sage/geometry/hyperbolic_space/hyperbolic_geodesic.py

@@ -539,7 +539,7 @@ def is_ultra_parallel(self, other):
     def is_parallel(self, other):
         r"""
         Return ``True`` if the two given hyperbolic geodesics are either
-        ultra parallel or asymptotically parallel and``False`` otherwise.
+        ultra parallel or asymptotically parallel and ``False`` otherwise.
 
         INPUT:
 

src/sage/graphs/strongly_regular_db.pyx

@@ -2784,7 +2784,7 @@ def strongly_regular_graph(int v, int k, int l, int mu=-1, bint existence=False,
     - ``v``, ``k``, ``l``, ``mu`` -- ``integers`` -- note that ``mu``, if unspecified, is
       automatically determined from ``v``, ``k``, ``l``
 
-    - ``existence`` -- boolean;``False``; instead of building the graph,
+    - ``existence`` -- boolean (default: ``False``); instead of building the graph,
       return:
 
         - ``True`` -- meaning that a `(v,k,\lambda,\mu)`-strongly regular graph

src/sage/matrix/matrix_modn_dense_template.pxi

@@ -1764,7 +1764,7 @@ cdef class Matrix_modn_dense_template(Matrix_dense):
           ``LinBox::FFPACK`` implementation, since the latter also
           computes the transformation matrix (which we
           ignore). However, ``efd=True`` uses more memory than FFLAS
-          directly (default=``True``)
+          directly (default: ``True``)
 
         EXAMPLES::
 

src/sage/rings/polynomial/multi_polynomial_libsingular.pyx

@@ -6116,7 +6116,7 @@ cdef class MPolynomial_libsingular(MPolynomial_libsingular_base):
             and only if the remainder involves only the new variables
             `z_i`.
 
-        - ``certificate`` --  boolean (default: ``False``) or string; if``True``
+        - ``certificate`` --  boolean (default: ``False``) or string; if ``True``
           and ``algorithm='groebner'``, return the polynomial generated by
           the algorithm if such a polynomial exists, otherwise return ``None``;
           if a nonempty string, then this is used as the name of the variables