Enhance and Correct Scrum Master article (#20986)
Enhance and Correct Scrum Master article (#20986)

* Enhance and Correct Scrum Master article

Adjusted spelling and scrum guide link, add additional Scrum Master duties, and correct some misconceptions.

* Complete a sentence and change link destination

FreeCodeCamp/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,raisedadead/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,jonathanihm/freeCodeCamp,FreeCodeCamp/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,raisedadead/FreeCodeCamp,jonathanihm/freeCodeCamp