Format the values of norm orders to the table

Author: antonwolfy

dpnp/linalg/dpnp_iface_linalg.py

@@ -182,14 +182,18 @@ def cond(x, p=None):
     p : {None, 1, -1, 2, -2, inf, -inf, "fro"}, optional
         Order of the norm used in the condition number computation:
 
-            - None: 2-norm.
-            - "fro": Frobenius norm.
-            - inf: max(sum(abs(x), axis=1)).
-            - -inf: min(sum(abs(x), axis=1)).
-            - 1: max(sum(abs(x), axis=0)).
-            - -1: min(sum(abs(x), axis=0)).
-            - 2: 2-norm (largest singular value).
-            - -2: smallest singular value.
+        =====  ============================
+        p      norm for matrices
+        =====  ============================
+        None   2-norm
+        'fro'  Frobenius norm
+        inf    max(sum(abs(x), axis=1))
+        -inf   min(sum(abs(x), axis=1))
+        1      max(sum(abs(x), axis=0))
+        -1     min(sum(abs(x), axis=0))
+        2      2-norm (largest singular value)
+        -2     smallest singular value
+        =====  ============================
 
         ``inf`` means the :obj:`dpnp.inf` object, and the Frobenius norm is
         the root-of-sum-of-squares norm.