website React class warning fixed

Author: JohnCoene

.Rbuildignore

@@ -9,3 +9,5 @@ srcjs
 vignettes
 FUNDING.yml
 .gitattributes
+^\.travis\.yml$
+^appveyor\.yml$

.travis.yml

@@ -0,0 +1,4 @@
+# R for travis: see documentation at https://docs.travis-ci.com/user/languages/r
+
+language: R
+cache: packages

README.md

@@ -1,4 +1,6 @@
 <!-- badges: start -->
+[![Travis build status](https://travis-ci.org/JohnCoene/grapher.svg?branch=master)](https://travis-ci.org/JohnCoene/grapher)
+[![AppVeyor build status](https://ci.appveyor.com/api/projects/status/github/JohnCoene/grapher?branch=master&svg=true)](https://ci.appveyor.com/project/JohnCoene/grapher)
 <!-- badges: end -->
 
 # grapher

appveyor.yml

@@ -0,0 +1,52 @@
+# DO NOT CHANGE the "init" and "install" sections below
+
+# Download script file from GitHub
+init:
+  ps: |
+        $ErrorActionPreference = "Stop"
+        Invoke-WebRequest http://raw.github.com/krlmlr/r-appveyor/master/scripts/appveyor-tool.ps1 -OutFile "..\appveyor-tool.ps1"
+        Import-Module '..\appveyor-tool.ps1'
+
+install:
+  ps: Bootstrap
+
+cache:
+  - C:\RLibrary
+
+environment:
+  NOT_CRAN: true
+  # env vars that may need to be set, at least temporarily, from time to time
+  # see https://github.com/krlmlr/r-appveyor#readme for details
+  # USE_RTOOLS: true
+  # R_REMOTES_STANDALONE: true
+
+# Adapt as necessary starting from here
+
+build_script:
+  - travis-tool.sh install_deps
+
+test_script:
+  - travis-tool.sh run_tests
+
+on_failure:
+  - 7z a failure.zip *.Rcheck\*
+  - appveyor PushArtifact failure.zip
+
+artifacts:
+  - path: '*.Rcheck\**\*.log'
+    name: Logs
+
+  - path: '*.Rcheck\**\*.out'
+    name: Logs
+
+  - path: '*.Rcheck\**\*.fail'
+    name: Logs
+
+  - path: '*.Rcheck\**\*.Rout'
+    name: Logs
+
+  - path: '\*_*.tar.gz'
+    name: Bits
+
+  - path: '\*_*.zip'
+    name: Bits

docs/docs/install.md

@@ -4,6 +4,9 @@ title: Installation
 sidebar_label: Installation
 ---
 
+[![Travis build status](https://travis-ci.org/JohnCoene/grapher.svg?branch=master)](https://travis-ci.org/JohnCoene/grapher)
+[![AppVeyor build status](https://ci.appveyor.com/api/projects/status/github/JohnCoene/grapher?branch=master&svg=true)](https://ci.appveyor.com/project/JohnCoene/grapher)
+
 grapher is not yet on [CRAN](https://cran.r-project.org/), it will have go through a thorough testing phase before being submitted. The code is hosted on [Github](http://github.com/JohnCoene/grapher) and can be installed using either `devtools` or `remotes`.
 
 Some functions rely on Jeroen Ooms' [V8](https://github.com/jeroen/V8) package which requires Google's V8 JavaScript engine installed, the installation instructions are available in the [README of V8](https://github.com/jeroen/V8) and below. If you do not want to install V8 skip this step but that is not recommended.

docs/website/core/Footer.js

@@ -95,7 +95,7 @@ class Footer extends React.Component {
           </div>
         </section>
         <section className="copyright">
-        <a class="github-button" href="https://github.com/sponsors/JohnCoene" data-icon="octicon-heart" aria-label="Sponsor @JohnCoene on GitHub">Sponsor</a>
+        <a className="github-button" href="https://github.com/sponsors/JohnCoene" data-icon="octicon-heart" aria-label="Sponsor @JohnCoene on GitHub">Sponsor</a>
         <br/>
         {this.props.config.copyright}
         </section>

docs/website/pages/en/index.js

@@ -101,7 +101,7 @@ class Index extends React.Component {
           contents={props.children}
           layout={props.layout}
         />
-        <div class="btnwrap"> 
+        <div className="btnwrap"> 
           <a className="button" href='docs/get-started.md'>
             Get Started
           </a>