one more fix

docs/ecosystem.rst

@@ -37,17 +37,17 @@ Ethermint
 The go-ethereum state machine run as a ABCI app, written in Go, `authored by Tendermint <https://github.com/tendermint/ethermint>`__.
 
 Lotion
-^^^^^^^^^^^^^
+^^^^^^
 
 A Javascript microframework for building blockchain applications with Tendermint, written in Javascript, `authored by Judd Keppel of Tendermint <https://github.com/keppel/lotion>`__. See also `lotion-chat <https://github.com/keppel/lotion-chat>`__ and `lotion-coin <https://github.com/keppel/lotion-coin>`__ apps written using Lotion.
 
 IAVL
-~~~~~~~~~~
+^^^^
 
 Immutable AVL+ tree with Merkle proofs, Written in Go, `authored by Tendermint <https://github.com/tendermint/iavl>`__.
 
 MerkleTree
-~~~~~~~~~~
+^^^^^^^^^^
 
 Immutable AVL+ tree with Merkle proofs, Written in Java, `authored by jTendermint <https://github.com/jTendermint/MerkleTree>`__.