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

diff --git a/docs/options.md b/docs/options.md
index 7a8903d..159951a 100644
--- a/docs/options.md
+++ b/docs/options.md
@@ -205,7 +205,7 @@
    * Website: https://github.com/envoyproxy/protoc-gen-validate
    * Extensions: 1071
 
-1. protokt
+1. Protokt
    * Website: https://github.com/open-toast/protokt
    * Extensions: 1072
 
diff --git a/docs/third_party.md b/docs/third_party.md
index 4075327..ca2ac63 100644
--- a/docs/third_party.md
+++ b/docs/third_party.md
@@ -70,6 +70,7 @@
 * 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