[skip ci] docs: api documentation

Author: kozistr

docs/api.rst

@@ -62,23 +62,23 @@ AGC
 diffGrad
 --------
 
-.. autoclass:: pytorch_optimizer.diffGrad
+.. autoclass:: pytorch_optimizer.DiffGrad
     :members:
 
 .. _diffRGrad:
 
 diffRGrad
 ---------
 
-.. autoclass:: pytorch_optimizer.diffRGrad
+.. autoclass:: pytorch_optimizer.DiffRGrad
     :members:
 
 .. _GC:
 
 GC
 --
 
-.. autoclass:: pytorch_optimizer.gradient_centralization
+.. autoclass:: pytorch_optimizer.centralize_gradient
     :members:
 
 .. _Lamb:
@@ -88,3 +88,107 @@ Lamb
 
 .. autoclass:: pytorch_optimizer.Lamb
     :members:
+
+.. _LARS:
+
+LARS
+----
+
+.. autoclass:: pytorch_optimizer.LARS
+    :members:
+
+.. _Lookahead:
+
+Lookahead
+---------
+
+.. autoclass:: pytorch_optimizer.Lookahead
+    :members:
+
+.. _MADGRAD:
+
+MADGRAD
+-------
+
+.. autoclass:: pytorch_optimizer.MADGRAD
+    :members:
+
+.. _Nero:
+
+Nero
+----
+
+.. autoclass:: pytorch_optimizer.Nero
+    :members:
+
+.. _PCGrad:
+
+PCGrad
+------
+
+.. autoclass:: pytorch_optimizer.PCGrad
+    :members:
+
+.. _PNM:
+
+PNM
+---
+
+.. autoclass:: pytorch_optimizer.PNM
+    :members:
+
+.. _RAdam:
+
+RAdam
+-----
+
+.. autoclass:: pytorch_optimizer.RAdam
+    :members:
+
+.. _RaLamb:
+
+RaLamb
+------
+
+.. autoclass:: pytorch_optimizer.RaLamb
+    :members:
+
+.. _Ranger:
+
+Ranger
+------
+
+.. autoclass:: pytorch_optimizer.Ranger
+    :members:
+
+.. _Ranger21:
+
+Ranger21
+--------
+
+.. autoclass:: pytorch_optimizer.Ranger21
+    :members:
+
+.. _SAM:
+
+SAM
+---
+
+.. autoclass:: pytorch_optimizer.SAM
+    :members:
+
+.. _SGDP:
+
+SGDP
+----
+
+.. autoclass:: pytorch_optimizer.SGDP
+    :members:
+
+.. _Shampoo:
+
+Shampoo
+-------
+
+.. autoclass:: pytorch_optimizer.Shampoo
+    :members: