diff --git a/README.md b/README.md
index b1034661..fcb557ae 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Introduction to Git and GitHub
 
-## Simple Interest Calculator
+## Simple Interest Calculator (Updated)
 
 A calculator that calculates simple interest given principal, annual rate of interest and time period in years.
 
diff --git a/bug-fix-revert b/bug-fix-revert
new file mode 100644
index 00000000..b80a2b74
--- /dev/null
+++ b/bug-fix-revert
@@ -0,0 +1,3 @@
+$ curl https://api.github.com/repos/arjyalopa/mcino-Introduction-to-Git-and-GitHub/pulls
+
+<PASTE THE FULL TERMINAL OUTPUT HERE>
diff --git a/forked-repo b/forked-repo
new file mode 100644
index 00000000..18801e40
--- /dev/null
+++ b/forked-repo
@@ -0,0 +1,8 @@
+curl -s https://api.github.com/repos/arjyalopa/mcino-Introduction-to-Git-and-GitHub
+
+{
+  "fork": true,
+  "parent": {
+    "full_name": "ibm-developer-skills-network/mcino-Introduction-to-Git-and-GitHub"
+  }
+}
diff --git a/github-branches b/github-branches
new file mode 100644
index 00000000..106fcd79
--- /dev/null
+++ b/github-branches
@@ -0,0 +1,3 @@
+$ git branch -v
+  bug-fix-typo ae281e4 Fix typo in README
+* main         f9a11d2 Verify pull request and fork source using curl
\ No newline at end of file
diff --git a/merge_branches b/merge_branches
new file mode 100644
index 00000000..edb10306
--- /dev/null
+++ b/merge_branches
@@ -0,0 +1,16 @@
+$ git checkout -b bug-fix-typo
+Switched to a new branch 'bug-fix-typo'
+
+$ git add README.md
+$ git commit -m "Fix typo in README"
+1 file changed, 1 insertion(+), 1 deletion(-)
+
+$ git checkout main
+Switched to branch 'main'
+Your branch is up to date with 'origin/main'.
+
+$ git merge bug-fix-typo
+Updating e095add..ae281e4
+Fast-forward
+README.md | 2 +-
+1 file changed, 1 insertion(+), 1 deletion(-)