Docstring suggestions by kwankyu

For commits 0b60f4f, aaf8cc8, and d7d1ce3.

src/sage/calculus/calculus.py

@@ -700,7 +700,7 @@ def nintegral(ex, x, a, b,
     - ``maximum_num_subintervals`` -- (default: 200)
       maximal number of subintervals
 
-    OUTPUT: float -- approximation to the integral
+    OUTPUT: float; approximation to the integral
 
     - float: estimated absolute error of the
       approximation

src/sage/combinat/designs/orthogonal_arrays.py

@@ -752,7 +752,7 @@ def orthogonal_array(k,n,t=2,resolvable=False, check=True,existence=False,explai
 
     - ``n`` -- integer; number of symbols
 
-    - ``t`` -- (integer; default: 2); strength of the array
+    - ``t`` -- integer (default: 2); strength of the array
 
     - ``resolvable`` -- boolean (default: ``False``); set to ``True`` if you
       want the design to be resolvable. The `n` classes of the resolvable

src/sage/combinat/k_tableau.py

@@ -3325,10 +3325,11 @@ def shape( self ):
 
         INPUT:
 
-        - ``form`` -- optional argument to indicate 'inner', 'outer' or 'skew'
-          (default: 'outer')
+        - ``form`` -- optional argument to indicate ``'inner'``, ``'outer'`` or
+          ``'skew'`` (default: ``'outer'``)
 
-        OUTPUT: a `k+1`-core or a pair of `k+1`-cores if form is not 'inner' or 'outer'
+        OUTPUT: a `k+1`-core or a pair of `k+1`-cores if form is not
+        ``'inner'`` or ``'outer'``
 
         EXAMPLES::