fix: deprecate library

Author: mdonnalley

README.md

@@ -1,7 +1,7 @@
-eslint-config-oclif-typescript
+eslint-config-oclif-typescript (Deprecated)
 ====================
 
-eslint config for Typscript'd oclif
+**Deprecated** eslint-config for oclif typescript projects. Use [eslint-config-oclif](https://github.com/oclif/eslint-config-oclif) instead.
 
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