fixing the documentation for the class flat (#5497)

* fixing the documentation for the class flat

* update the alias

* update the alias

Author: lalitmusmade

pymc/distributions/continuous.py

@@ -382,7 +382,7 @@ def logp(value):
 
         Parameters
         ----------
-        value: numeric
+        value : tensor_like of float
             Value(s) for which log-probability is calculated. If the log probabilities for multiple
             values are desired the values must be provided in a numpy array or Aesara tensor
 
@@ -399,7 +399,7 @@ def logcdf(value):
 
         Parameters
         ----------
-        value: numeric or np.ndarray or aesara.tensor
+        value : tensor_like of float
             Value(s) for which log CDF is calculated. If the log CDF for multiple
             values are desired the values must be provided in a numpy array or Aesara tensor.