Updated sample

.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# Auth files
+*.auth
+*.azureauth
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+.vs/
+*.lock.json
+developer/
+
+# Build results
+binaries/
+[Dd]ebug*/
+[Rr]elease/
+build/
+src/NuGet.Config
+tools/7-zip/
+
+[Tt]est[Rr]esult
+[Bb]uild[Ll]og.*
+
+*_i.c
+*_p.c
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.vspscc
+*.vssscc
+.builds
+
+*.pidb
+
+*.log
+*.scc
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+
+# Visual Studio profiler
+*.psess
+*.vsp
+
+# Code analysis
+*.CodeAnalysisLog.xml
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+
+*.[Rr]e[Ss]harper
+
+# NCrunch
+*.ncrunch*
+.*crunch*.local.xml
+
+# Installshield output folder
+[Ee]xpress
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish
+
+# Publish Web Output
+*.Publish.xml
+
+# Others
+[Bb]in
+[Oo]bj
+TestResults
+[Tt]est[Rr]esult*
+*.Cache
+ClientBin
+[Ss]tyle[Cc]op.*
+~$*
+*.dbmdl
+node_modules
+
+*.[Pp]ublish.xml
+
+Generated_Code #added for RIA/Silverlight projects
+
+# Build tasks
+tools/*.dll
+
+# Sensitive files
+*.keys
+*.pfx
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+
+# NuGet
+packages
+packages/repositories.config
+
+# Mac development
+.DS_Store
+
+# Specification DLLs
+*.Specification.dll
+
+# Generated readme.txt files #
+src/*/readme.txt
+
+build.out
+.nuget/
+
+# Azure Project
+csx/
+*.GhostDoc.xml
+pingme.txt

CONTRIBUTING.md

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+# Contributing to Azure samples
+
+Thank you for your interest in contributing to Azure samples!
+
+## Ways to contribute
+
+You can contribute to [Azure samples](https://github.com/Azure-Samples/sql-database-dotnet-manage-firewalls-for-sql-databases) in a few different ways:
+
+- Submit feedback on [this sample page](https://azure.microsoft.com/documentation/samples/sql-database-dotnet-manage-firewalls-for-sql-databases/) whether it was helpful or not.  
+- Submit issues through [issue tracker](https://github.com/Azure-Samples/sql-database-dotnet-manage-firewalls-for-sql-databases/issues) on GitHub. We are actively monitoring the issues and improving our samples.
+- If you wish to make code changes to samples, or contribute something new, please follow the [GitHub Forks / Pull requests model](https://help.github.com/articles/fork-a-repo/): Fork the sample repo, make the change and propose it back by submitting a pull request.