fix typo

README.md

@@ -1,6 +1,6 @@
 # Dual Token Model
 
-Dual token model is discussed in this article as an improvement of the token model for [neo](https://neo.org/) and [ontology](https://ont.io/) to solve the current dillemma of GAS (or ONG).
+Dual token model is discussed in this article as an improvement of the token model for [neo](https://neo.org/) and [ontology](https://ont.io/) to solve the current dilemma of GAS (or ONG).
 
 Actually it is discussing gerneral dual token problems and it could be a reference for all dual token model blockchains not only for [neo](https://neo.org/) and [ontology](https://ont.io/).
 

dual-token-model.ipynb

@@ -248,7 +248,7 @@
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@@ -287,7 +287,7 @@
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@@ -342,7 +342,7 @@
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@@ -568,7 +568,7 @@
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@@ -623,7 +623,7 @@
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@@ -678,7 +678,7 @@
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@@ -733,7 +733,7 @@
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@@ -788,7 +788,7 @@
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