Update Readme.md

journal/Readme.md

@@ -6,4 +6,5 @@
 ### 2.1.1  About Calculating π
 My computer tells me that π is approximately **3.141592653589793**
 
-### 2.1.2  Using Buffon's Needle Method
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+### 2.1.2  Using Buffon's Needle Method
+But calculated using the [Buffon's needle](https://en.wikipedia.org/wiki/Buffon's_needle) method, we would obtain as an approximation **3.128911138923655**
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