Add SessionM to list of companies using swagger. (#7598)

Author: pygeek

README.md

@@ -851,6 +851,7 @@ Here are some companies/projects using Swagger Codegen in production. To add you
 - [Saritasa](https://www.saritasa.com/)
 - [SAS](https://www.sas.com)
 - [SCOOP Software GmbH](http://www.scoop-software.de)
+- [SessionM](https://www.sessionm.com/)
 - [Shine Solutions](https://shinesolutions.com/)
 - [Simpfony](https://www.simpfony.com/)
 - [Skurt](http://www.skurt.com)
@@ -930,7 +931,7 @@ Presentations/Videos/Tutorials/Books
 - 2017/09/21 - [Generating an Elastic Cloud Enterprise Client](https://www.elastic.co/blog/generating-an-elastic-cloud-enterprise-client) by [Greg Marzouka](https://github.com/gmarz) ([Elastic](https://www.elastic.co/))
 - 2017/09/26 - [How to Use IoT Application Enablement Api Hub JSON Descriptor in Postman and How to Generate Client Code](https://www.linkedin.com/in/radu-simen/) by [Radu Simen](https://www.linkedin.com/in/radu-simen/) ([SAP](https://www.sap.com/))
 - 2017/09/28 - [Swagger Codegenで APIクライアントgem 自動生成 #m3kt](https://speakerdeck.com/juntaki/swagger-codegende-apikuraiantogem-zi-dong-sheng-cheng-number-m3kt) by [Jumpei Takiyasu](https://github.com/juntaki)
-- 2017/09/30 - [Swaggerのテンプレートを魔改造した話 #渋谷java](https://www.slideshare.net/int128/swagger-80309224) by [Hidetake Iwata](https://github.com/int128) ([NTT DATA Corporation](http://www.nttdata.com/global/en/))
+- 2017/09/30 - [Swaggerのテンプレートを魔改造した話 #渋谷java](https://www.slideshare.net/int128/swagger-80309224) by [Hidetake Iwata](https://github.com/int128) ([NTT DATA Corporation](http://www.nttdata.com/global/en/))
 - 2017/10/04 - [Enterprise-friendly Java client for Microsoft Machine Learning Server](https://blogs.msdn.microsoft.com/mlserver/2017/10/04/enterprise-friendly-java-client-for-microsoft-machine-learning-server/) by [Pratik Palnitkar](https://www.linkedin.com/in/pratikpalnitkar/) ([Microsoft](https://www.microsoft.com/))
 - 2017/10/08 - [Generating a REST Ada client with OpenAPI and Swagger Codegen](https://blog.vacs.fr/vacs/blogs/post.html?post=2017/10/08/Generating-a-REST-Ada-client-with-OpenAPI-and-Swagger-Codegen) by [Stephane Carrez](https://github.com/stcarrez)
 - 2017/11/08 - [A Beginner's Guide to Code Generation for REST APIs](https://gum.co/swagger_codegen_beginner)(eBook) by [William Cheng](https://twitter.com/wing328)
@@ -940,7 +941,7 @@ Presentations/Videos/Tutorials/Books
 - 2017/12/29 - [REST APIs代码生成指南](https://gumroad.com/l/swagger_codegen_beginner_zh)(eBook) by [William Cheng](https://github.com/wing328), [Xin Meng](https://github.com/xmeng1)
 - 2017/12/21 - [Using Protocol Buffer to Generate SDK at Hootsuite](http://code.hootsuite.com/using-protocol-buffer-to-generate-sdk-at-hoosuite/?lipi=urn%3Ali%3Apage%3Ad_flagship3_messaging%3By4ATz3SDRXyvXJJ14LQysQ%3D%3D) by [Joy Zhang](https://www.linkedin.com/in/joy8zhang/)
 - 2018/01/11 - [Swagger 工具箱介绍及代码自动生成示例](https://github.com/qct/swagger-example) by [qct](https://github.com/qct)
-- 2018/01/19 - [Generowanie kodu usług REST - przewodnik dla początkujących](https://gum.co/swagger_codegen_beginner_pl)(eBook) by [William Cheng](https://github.com/wing328), [Tomasz Prus](https://github.com/tomplus), [Bartek Kryza](https://github.com/bkryza)
+- 2018/01/19 - [Generowanie kodu usług REST - przewodnik dla początkujących](https://gum.co/swagger_codegen_beginner_pl)(eBook) by [William Cheng](https://github.com/wing328), [Tomasz Prus](https://github.com/tomplus), [Bartek Kryza](https://github.com/bkryza)
 - 2018/02/03 - [Writing REST APIs with OpenAPI and Swagger Ada](https://www.slideshare.net/StephaneCarrez1/writing-rest-apis-with-openapi-and-swagger-ada/StephaneCarrez1/writing-rest-apis-with-openapi-and-swagger-ada) by [Stephane Carrez](https://github.com/stcarrez) at [FOSDEM 2018](https://fosdem.org/2018)