updates completed, added new tests and updated ReadMe

Author: Daniel15568

README.md

@@ -70,9 +70,10 @@ split(100, [1, 1, 1])    # → [33.33, 33.33, 33.33]
 ```python
 from percentify import display
 
-display(25.0)                  # → "25.0%"
-display(33.3333, 1)            # → "33.3%"
-display(50, suffix=" percent") # → "50.0 percent"
+display(25.0)                         # → "25.0%"
+display(33.3333, 1)                   # → "33.3%"
+display(50, suffix=" percent")        # → "50.0 percent"
+display(0.45, multiply=True)          # → "45.0%"
 ```
 
 ### Composing Functions

tests/test_core.py

@@ -104,3 +104,12 @@ def test_display_no_rounding():
 
 def test_display_zero():
     assert display(0) == "0.0%"
+
+def test_display_multiply():
+    assert display(0.45, multiply=True) == "45.0%"
+
+def test_display_multiply_small():
+    assert display(0.0725, multiply=True) == "7.25%"
+
+def test_display_multiply_false():
+    assert display(0.45) == "0.45%"