Merge pull request #838 from yaelbh/minor_typo

fixed a minor typo

Author: nonhermitian

qiskit/advanced/aqua/chemistry/dissociation_profile_of_molecule.ipynb

@@ -28,7 +28,7 @@
    "source": [
     "### Introduction\n",
     "\n",
-    "One of the most compelling possibilities of quantum computation is the the simulation of other quantum systems. Quantum simulation of quantum systems encompasses a wide range of tasks, including most significantly:\n",
+    "One of the most compelling possibilities of quantum computation is the simulation of other quantum systems. Quantum simulation of quantum systems encompasses a wide range of tasks, including most significantly:\n",
     "    \n",
     "1. Simulation of the time evolution of quantum systems.\n",
     "\n",