chore: add examples

examples/01_variables.peb

@@ -0,0 +1,6 @@
+let var1 = 13
+let var2 = "Hello"
+let var3 = false
+let var4 = var3
+var4 = var2
+var3 = null

examples/02_operations.peb

@@ -0,0 +1,5 @@
+let a = 4
+let b = 5
+let c = a + b
+c *= 7
+let d = (3.2 - 0.2) + 4 * 6 / 2

examples/03_comparisons.peb

@@ -0,0 +1,9 @@
+let a = 5
+let b = 7
+
+let equal = a == b
+let not_equal = a != b
+let less = a < b
+let more = a > b
+let less_eq = a <= b
+let more_eq = a >= b

examples/04_if_else.peb

@@ -0,0 +1,18 @@
+let age = 14
+
+if age >= 18 {
+    print("You are an adult")
+} else {
+    print("You are a child)
+}
+
+let guess = 12
+let secret = 14
+
+if guess == secret {
+    print("You guessed the secret !")
+} else if guess < secret {
+    print("You're too low")
+} else {
+    print("You're too high")
+}

examples/05_loop.peb

@@ -0,0 +1,17 @@
+for i from 1 to 5 {
+    print(i)
+}
+
+for j from 0 until 10 by 2 {
+    print(j)
+}
+
+for k to 4 {
+    print(k)
+}
+
+let l = 0
+while l < 10 {
+    print(l)
+    l += 3
+}