Adding back files that needed to be added.

README.md

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+# `network`: Classes for Relational Data
+
+[![rstudio mirror downloads](https://cranlogs.r-pkg.org/badges/network?color=2ED968)](https://cranlogs.r-pkg.org/)
+[![cran version](https://www.r-pkg.org/badges/version/network)](https://cran.r-project.org/package=network)
+[![Coverage status](https://codecov.io/gh/statnet/network/branch/master/graph/badge.svg)](https://codecov.io/github/statnet/network?branch=master)
+[![R build status](https://github.com/statnet/network/workflows/R-CMD-check/badge.svg)](https://github.com/statnet/network/actions)
+
+Tools to create and modify network objects.  The network class can represent a range of relational data types, and supports arbitrary vertex/edge/graph attributes.
+
+## Public and Private repositories
+
+To facilitate open development of the package while giving the core developers an opportunity to publish on their developments before opening them up for general use, this project comprises two repositories:
+* A public repository `statnet/network`
+* A private repository `statnet/network-private`
+
+The intention is that all developments in `statnet/network-private` will eventually make their way into `statnet/network` and onto CRAN.
+
+Developers and Contributing Users to the Statnet Project should read https://statnet.github.io/private/ for information about the relationship between the public and the private repository and the workflows involved.
+
+## Latest Windows and MacOS binaries
+
+A set of binaries is built after every commit to the repository. We strongly encourage testing against them before filing a bug report, as they may contain fixes that have not yet been sent to CRAN. They can be downloaded through the following links:
+
+* [MacOS binary (a `.tgz` file in a `.zip` file)](https://nightly.link/statnet/network/workflows/R-CMD-check.yaml/master/macOS-rrelease-binaries.zip)
+* [Windows binary (a `.zip` file in a `.zip` file)](https://nightly.link/statnet/network/workflows/R-CMD-check.yaml/master/Windows-rrelease-binaries.zip)
+
+You will need to extract the MacOS `.tgz` or the Windows `.zip` file from the outer `.zip` file before installing. These binaries are usually built under the latest version of R and their operating system and may not work under other versions.
+
+You may also want to install the corresponding latest binaries for packages on which `network` depends, in particular [`statnet.common`](https://github.com/statnet/statnet.common).

codecov.yml

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+comment: false
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+        informational: true
+    patch:
+      default:
+        target: auto
+        threshold: 1%
+        informational: true