fixed README characters; made some minor edits to clarify workflow
fixed README characters; made some minor edits to clarify workflow

projectkudu/SiteExtensionGallery,projectkudu/SiteExtensionGallery,ScottShingler/NuGetGallery,ScottShingler/NuGetGallery,skbkontur/NuGetGallery,skbkontur/NuGetGallery,mtian/SiteExtensionGallery,grenade/NuGetGallery_download-count-patch,skbkontur/NuGetGallery,KuduApps/NugetGallery21Fx45-DeleteMe,ScottShingler/NuGetGallery,KuduApps/NuGetGallery,projectkudu/SiteExtensionGallery,KuduApps/NuGetGallery,mtian/SiteExtensionGallery,kudustress/NuGetGalleryOptmized,kudustress/NuGetGallery,KuduApps/NugetGallery21Fx45-DeleteMe,kudustress/NuGetGalleryOptmized,JetBrains/ReSharperGallery,KuduApps/NuGetGallery,KuduApps/NuGetGallery,grenade/NuGetGallery_download-count-patch,kudustress/NuGetGallery2,KuduApps/NugetGallery16Fx45-DeleteMe,kudustress/NuGetGallery,JetBrains/ReSharperGallery,JetBrains/ReSharperGallery,grenade/NuGetGallery_download-count-patch,KuduApps/NugetGallery16Fx45-DeleteMe,KuduApps/NuGetGallery,mtian/SiteExtensionGallery,kudustress/NuGetGallery2