Mention softmax in math docs

ricardoV94 · ricardoV94 · commit 08e680e123f5 · 2020-11-16T15:03:47.000+01:00
diff --git a/docs/source/api/math.rst b/docs/source/api/math.rst
@@ -58,6 +58,7 @@ expressions rather than NumPy or Python code.
    logsumexp
    invlogit
    logit
+   softmax
 
 .. automodule:: pymc3.math
    :members:
