Add Protokt to the list of 3rd party implementations (#7169)

docs/options.md

@@ -205,7 +205,7 @@ with info about your project (name and website) so we can add an entry for you.
    * Website: https://github.com/envoyproxy/protoc-gen-validate
    * Extensions: 1071
 
-1. protokt
+1. Protokt
    * Website: https://github.com/open-toast/protokt
    * Extensions: 1072
 

docs/third_party.md

@@ -70,6 +70,7 @@ These are projects we know about implementing Protocol Buffers for other program
 * Kotlin: https://github.com/marcoferrer/kroto-plus
 * Kotlin: https://github.com/Kotlin/kotlinx.serialization
 * Kotlin: https://github.com/ButterCam/sisyphus
+* Kotlin: https://github.com/open-toast/protokt
 * Lua: http://code.google.com/p/protoc-gen-lua/
 * Lua: http://github.com/indygreg/lua-protobuf
 * Lua: https://github.com/Neopallium/lua-pb