fix(whitepaper): fix rendering

Signed-off-by: AzaharaC <a.castano.benito@accenture.com>

whitepaper/whitepaper.md

@@ -235,35 +235,33 @@ The ledger transfer has a high degree of interference between the blockchains si
 
 Legend:
 
-<img src="https://render.githubusercontent.com/render/math?math=O_1 =\text{ Object 1}">
+![](https://render.githubusercontent.com/render/math?math=O_1=) Object 1
 
-<img src="https://render.githubusercontent.com/render/math?math=O_1^{begin}= \text{ State of object } \quad\!\!\!\! O_1 \quad \!\! \! \! \text{ at the beginning of transaction}">
+![](https://render.githubusercontent.com/render/math?math=O_1^{begin}=) State of object *O<sub>1</sub>* at the beginning of transaction
 
-<img src="https://render.githubusercontent.com/render/math?math=O_2^{begin} = \text{ State of object } \quad\!\!\!\! O_2 \quad\!\!\!\! \text{ at the beginning of transaction}">
+![](https://render.githubusercontent.com/render/math?math=O_2^{begin}=) State of object *O<sub>2</sub>* at the beginning of transaction
 
-<img src="https://render.githubusercontent.com/render/math?math=O_1^{end} = \text{ State of object } \quad\!\!\!\! O_1 \quad\!\!\!\! \text{ at the end of transaction}">
+![](https://render.githubusercontent.com/render/math?math=O_1^{end}=) State of object *O<sub>1</sub>* at the end of transaction
 
-<img src="https://render.githubusercontent.com/render/math?math=O_2^{end} = \text{ State of object } \quad\!\!\!\! O_2 \quad\!\!\!\! \text{ at the end of transaction}">
+![](https://render.githubusercontent.com/render/math?math=O_2^{end}=) State of object *O<sub>2</sub>* at the end of transaction
 
-<img src="https://render.githubusercontent.com/render/math?math=\overline{O}_1^{end} = \text{ Representation of object } \quad\!\!\!\! O_1\quad\!\!\!\! \text{ at the end of transaction in another blockchain}">
+*<span style="text-decoration:overline">O</span><sub>1</sub><sup>end</sup>* = Representation of object *O<sub>1</sub>* at the end of transaction in another blockchain
 
-<img src="https://render.githubusercontent.com/render/math?math=\overline{O}_2^{end} = \text{ Representation of object } \quad\!\!\!\! O_2 \quad\!\!\!\! \text{ at the end of transaction in another blockchain}">
+*<span style="text-decoration:overline">O</span><sub>2</sub><sup>end</sup>* = Representation of object } *O<sub>2</sub>* at the end of transaction in another blockchain
 
-<img src="https://render.githubusercontent.com/render/math?math=T_1 =\text{ Transaction 1}">
+![](https://render.githubusercontent.com/render/math?math=T_1=) Transaction 1
 
-<img src="https://render.githubusercontent.com/render/math?math=T_2 =\text{ Transaction 2}">
+![](https://render.githubusercontent.com/render/math?math=T_2=) Transaction 2
 
-<img src="https://render.githubusercontent.com/render/math?math=\overline{T}_1 = \text{ Representation of transaction 1 } \quad\!\!\!\! (T_1) \quad\!\!\!\! \text{ in another blockchain}">
+*<span style="text-decoration:overline">T</span><sub>1</sub>* = Representation of transaction 1 (T<sub>1</sub>) in another blockchain
 
-<img src="https://render.githubusercontent.com/render/math?math=\overline{T}_2 = \text{ Representation of transaction 2 } \quad\!\!\!\! (T_2) \quad\!\!\!\! \text{ in another blockchain}">
+*<span style="text-decoration:overline">T</span><sub>1</sub>* = Representation of transaction 2 (T<sub>2</sub>) in another blockchain
 
-<img src="https://render.githubusercontent.com/render/math?math=E_1 =\text{ Event 1}">
-
-<img src="https://render.githubusercontent.com/render/math?math=E_2(O_1||T_1||E_1) = \text{ Event 2 depends on }\quad\!\!\!\! O_1 \quad\!\!\!\!\text{ or }\quad\!\!\!\!T_1\quad\!\!\!\! \text{ or }\quad\!\!\!\!E_1">
-
-<img src="https://render.githubusercontent.com/render/math?math=T_2(O_1||T_1||E_1) = \text{ Transaction 2 depends on }\quad\!\!\!\!O_1\quad\!\!\!\! \text{ or } \quad\!\!\!\!T_1\quad\!\!\!\! \text{ or }\quad\!\!\!\!E_1">
+![](https://render.githubusercontent.com/render/math?math=E_1=) Event 1
 
+![](https://render.githubusercontent.com/render/math?math=E_2(O_1||T_1||E_1)=) Event 2 depends on *O<sub>1</sub>*  or *T<sub>1</sub>* or *E<sub>1</sub>*
 
+![](https://render.githubusercontent.com/render/math?math=T_2(O_1||T_1||E_1)=) Transaction 2 depends on *O<sub>1</sub>* or *T<sub>1</sub>* or *E<sub>1</sub>*
 
 
 
@@ -1687,6 +1685,7 @@ Each category serves particular use cases.
 
 ![rw](./related-work-categories.png)
 
+
 Cryptocurrency-directed interoperability approaches identify and define different strategies for chain interoperability across public blockchains, most of them implementing cryptocurrencies.
 
 Blockchain engines are frameworks that provide reusable data, network, consensus, incentive, and contract layers for the creation of customized blockchains, serving general use-cases. Emerging blockchains are, for example, the Cosmos Network and Polkadot.