Update standard/introduction.md

Co-authored-by: Bill Wagner <wiwagn@microsoft.com>

standard/introduction.md

@@ -2,7 +2,7 @@
 
 This specification is based on a submission from Hewlett-Packard, Intel, and Microsoft, that described a language called C#, which was developed within Microsoft. The principal inventors of this language were Anders Hejlsberg, Scott Wiltamuth, and Peter Golde. The first widely distributed implementation of C# was released by Microsoft in July 2000, as part of its .NET Framework initiative.
 
-Ecma Technical Committee 39 (TC39) \[later renamed to TC49\] Task Group 2 (TG2) was formed in September 2000, to produce a standard for C#. Another Task Group, TG3, was also formed at that time to produce a standard for a library and execution environment called Common Language Infrastructure (CLI). (CLI is based on a subset of the .NET Framework.) Although Microsoft’s implementation of C# relies on CLI for library and run-time support, other implementations of C# need not provided they support the features and API required by this C# Standard (see [Annex C](standard-library.md#annex-c-standard-library)).
+Ecma Technical Committee 39 (TC39) \[later renamed to TC49\] Task Group 2 (TG2) was formed in September 2000, to produce a standard for C#. Another Task Group, TG3, was also formed at that time to produce a standard for a library and execution environment called Common Language Infrastructure (CLI). (CLI is based on a subset of the .NET Framework.) Although Microsoft’s implementation of C# relies on CLI for library and run-time support, other implementations of C# need not, provided they support the features and API required by this C# Standard (see [Annex C](standard-library.md#annex-c-standard-library)).
 
 As the definition of C# evolved, the goals used in its design were as follows: