Hello,

I encountered an issue with the following code:
```php
p Some example
```
Carbon version: **PUT HERE YOUR COMPOSER CARBON VERSION**
PHP version: **PUT HERE YOUR PHP VERSION**
<!--
Run the command `composer show nesbot/carbon`
to get "versions"
Use `echo phpversion();`
to get PHP version.

Some issues can depends on your context, settings,
macros, timezone, language. So to be sure the code
you give is enough to reproduce your bug, try it
first in:
https://try-carbon.herokuapp.com/?theme=xcode&export&embed

You can use the [Options] button to change the version
then when you get the bug with this editor, you can use
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I expected to get:
```
Expected output
```
<!--
Always give your expectations. Each use has their owns.
You may want daylight saving time to be taken into account,
someone else want it to be ignored. You may want timezone
to be used in comparisons, someone else may not, etc.
-->

But I actually get:
```
Actual output
```
<!--
If you did not succeed to get the same result in
https://try-carbon.herokuapp.com/ then precise the
result you get.
-->

Thanks!
Hello,

I encountered an issue with the following code:
```php
echo Carbon::parse('2018-06-01')->subDay()->month;
```
Carbon version: **PUT HERE YOUR COMPOSER CARBON VERSION**
PHP version: **PUT HERE YOUR PHP VERSION**
<!--
Run the command `composer show nesbot/carbon`
to get "versions"
Use `echo phpversion();`
to get PHP version.

Some issues can depends on your context, settings,
macros, timezone, language. So to be sure the code
you give is enough to reproduce your bug, try it
first in:
https://try-carbon.herokuapp.com/?theme=xcode&export&embed

You can use the [Options] button to change the version
then when you get the bug with this editor, you can use
the [Export] button, copy the link of the opened tab,
then paste it in the issue. Then we can immediatly get
your issue.
-->

I expected to get:
```
6
```
<!--
Always give your expectations. Each use has their owns.
You may want daylight saving time to be taken into account,
someone else want it to be ignored. You may want timezone
to be used in comparisons, someone else may not, etc.
-->

But I actually get:
```
5
```
<!--
If you did not succeed to get the same result in
https://try-carbon.herokuapp.com/ then precise the
result you get.
-->

Thanks!
Add a basic example to GitHub issue template
Add a basic example to GitHub issue template
