chore: add TODO for plot_pair_ef

Author: chilango74

okama/frontier/single_period.py

@@ -915,12 +915,6 @@ def plot_transition_map(self, x_axe: str = "risk", figsize: Optional[tuple] = No
 
         Parameters
         ----------
-        bounds : tuple of ((float, float),...)
-            Bounds for the assets weights. Each asset can have weights limitation from 0 to 1.0.
-            If an asset has limitation for 10 to 20%, bounds are defined as (0.1, 0.2).
-            bounds = ((0, .5), (0, 1)) shows that in Portfolio with two assets first one has weight limitations
-            from 0 to 50%. The second asset has no limitations.
-
         x_axe : {'risk', 'cagr'}, default 'risk'
             Show the relation between weights and CAGR (if 'cagr') or between weights and Risk (if 'risk').
             CAGR or Risk are displayed on the x-axis.
@@ -1020,6 +1014,7 @@ def plot_pair_ef(self, tickers="tickers", figsize: Optional[tuple] = None) -> pl
         >>> ax.plot(df4['Risk'], df4['Mean return'], color = 'black', linestyle='--')
         >>> plt.show()
         """
+        # TODO: Add bounds
         if len(self.symbols) < 3:
             raise ValueError("The number of symbols cannot be less than 3")
         # self._verify_axes()