update qsharp to csharp

qsharp.html.markdown

@@ -10,7 +10,7 @@ filename: LearnQSharp.qs
 
 Q# is a high-level domain-specific language which enables developers to write quantum algorithms. Q# programs can be executed on a quantum simulator running on a classical computer and (in future) on quantum computers.
 
-```qsharp
+```c#
 // Single-line comments start with //
 
 
@@ -206,4 +206,4 @@ operation Main() : Unit {
 
 The Quantum Katas ([repo](https://github.com/microsoft/qsharp/tree/main/katas) [hosted tutorials](https://quantum.microsoft.com/en-us/tools/quantum-katas) offer great self-paced tutorials and programming exercises to learn quantum computing and Q#. 
 
-[Q# Documentation](https://docs.microsoft.com/quantum/) is official Q# documentation, including language reference and user guides.
+[Q# Documentation](https://docs.microsoft.com/quantum/) is official Q# documentation, including language reference and user guides.