update demo instructions

README.md

@@ -1,14 +1,47 @@
 # DEMO: Git Conflict
 
-1) Pull the repository
-2) Checkout to a feature branch
-3) Make changes
-4) Checkout to main
-5) Checkout to another feature branch
-6) Make conflicting changes
-7) Merge the changes
-8) Checkout to main
-
-9) Checkout to first feature branch
-10) Merge the changes
-11) Resolve conflict
+Before the demo:
+
+```
+cp -r src\ git-conflict-demo-repo
+cd git-conflict-demo-repo\
+git init
+git checkout -b main
+git add calculator.ts
+git commit -m "initial commit"
+```
+
+During the demo:
+
+
+1) Create a feature branch
+```git branch fix-multiplication```
+1) Checkout to branch
+```git checkout fix-multiplication```
+1) Fix the multiplication function
+1) Add & Commit changes
+```git add calculator.ts```
+```git commit -m "fix multiplication"```
+1) Note that we did not merge the changes yet, they are in the feature branch
+1) Checkout to main
+```git checkout main```
+
+
+1) Checkout to another feature branch
+```git branch fix-calculator```
+1) Make conflicting changes
+1) Add & Commit changes
+```git add calculator.ts```
+```git commit -m "fix calculator"```
+1) Checkout to main
+```git checkout main```
+1) Merge the changes
+```git merge fix-calculator```
+
+1) Try to merge the changes from the first branch
+```git merge fix-multiplication```
+1) Observe the conflict message
+1) Fix the source code
+1) Add & Commit the changes
+```git commit -am "fix merge conflict"```
+1) Observe the finished product