Update "Using Selenium" documentation with C# example from .NET README (#2584)

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Updated the "Using Selenium" documentation in multiple languages to include references to the .NET README with C# example code blocks:

English (using_selenium.en.md)
Japanese (using_selenium.ja.md)
Portuguese (using_selenium.pt-br.md)
Simplified Chinese (using_selenium.zh-cn.md) e1d46ea

Author: selenium-ci

_print/documentation/about/index.html

@@ -76,7 +76,7 @@
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 <label><a href=https://github.com/selenium-ci>@selenium-ci</a></label>
-<span class=contributions>280 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/16140691?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
+<span class=contributions>281 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/16140691?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
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 <label><a href=https://github.com/krosenvold>@krosenvold</a></label>
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 <label><a href=https://github.com/nvborisenko>@nvborisenko</a></label>
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 <label><a href=https://github.com/shs96c>@shs96c</a></label>
-<span class=contributions>14 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/69031386?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
-<label><a href=https://github.com/sindhudiddi>@sindhudiddi</a></label>
-<span class=contributions>12 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/1113081?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
+<span class=contributions>14 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/1113081?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
 <label><a href=https://github.com/cgoldberg>@cgoldberg</a></label>
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+<span class=contributions>12 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/69031386?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
+<label><a href=https://github.com/sindhudiddi>@sindhudiddi</a></label>
+<span class=contributions>12 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/4995276?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
 <label><a href=https://github.com/hiroksarker>@hiroksarker</a></label>
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 <label><a href=https://github.com/nwintop>@nwintop</a></label>
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 <label><a href=https://github.com/j3soon>@j3soon</a></label>
 <span class=contributions>3 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/1610147?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
 <label><a href=https://github.com/mmerrell>@mmerrell</a></label>
-<span class=contributions>3 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/18169566?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
-<label><a href=https://github.com/deining>@deining</a></label>
+<span class=contributions>3 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/60065586?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
+<label><a href=https://github.com/rushixdd>@rushixdd</a></label>
 <span class=contributions>2 commits</span></div><div style=padding:10px><img src="https://avatars.githubusercontent.com/u/14201772?v=4" class=inline width=100 height=100 style=height:100px;height:100px;margin-bottom:.25em;vertical-align:middle>
 <label><a href=https://github.com/sangcnguyen>@sangcnguyen</a></label>
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