Fix link markup in third party list.

docs/third_party.md

@@ -161,7 +161,7 @@ There are miscellaneous other things you may find useful as a Protocol Buffers d
 * [ProtoBuf with Java EE7 Expression Language 3.0; pure Java ProtoBuf Parser and Builder.](https://github.com/protobufel/protobuf-el)
 * [Notepad++ Syntax Highlighting for .proto files](https://github.com/chai2010/notepadplus-protobuf)
 * [Linter for .proto files](https://github.com/ckaznocha/protoc-gen-lint)
-* [Protocol Buffers Dynamic Schema - create protobuf schemas programmatically (Java)] (https://github.com/os72/protobuf-dynamic)
+* [Protocol Buffers Dynamic Schema - create protobuf schemas programmatically (Java)](https://github.com/os72/protobuf-dynamic)
 * [Make protoc plugins in NodeJS](https://github.com/konsumer/node-protoc-plugin)
 * [ProfaneDB - A Protocol Buffers database](https://profanedb.gitlab.io)
 * [Protocol Buffer property-based testing utility and example message generator (Python / Hypothesis)](https://github.com/CurataEng/hypothesis-protobuf)