message: Fixing capitalization of C language
diff: ![logo](https://raw.githubusercontent.com/hyperledger/indy-node/master/collateral/logos/indy-logo.png)
  This is the official SDK for [Hyperledger Indy](https://www.hyperledger.org/projects),
  which provides a distributed-ledger-based foundation for [self-sovereign identity](https://sovrin.org). Indy provides a software ecosystem for private, secure, and powerful identity, and the Indy SDK enables clients for it.
  -The major artifact of the SDK is a c-callable
  +The major artifact of the SDK is a C-callable
  library; there are also convenience wrappers for various programming languages and Indy CLI tool.
  All bugs, stories, and backlog for this project are managed through [Hyperledger's Jira](https://jira.hyperledger.org/secure/RapidBoard.jspa)
  