Update issue templates

Note about maximum line width of code listings added to issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -25,6 +25,7 @@ Add any other context about the problem here. e.g.:
 * .NET version
 *Used libraries or frameworks (with version) that are required
 
-**Tip**
+**Important**
 * Do *not* include screen shots of [code](https://idownvotedbecau.se/imageofcode) or [exceptions](https://idownvotedbecau.se/imageofanexception/).
+* Do ensure that code listing don't have a line width that exceeds 100 characters, as that would cause horizontal scrollbars, which make it harder to view the code.
 * Follow the guidelines given by Stack Overflow and [IDownvotedBecau.se](https://idownvotedbecau.se/).

.github/ISSUE_TEMPLATE/question-and-feature-request.md

@@ -14,6 +14,7 @@ Describe your problem, question, or feature in a clear and concise way. Please m
 * Show a **simplified, but realistic, representation of your application**. We are not interested to see a large amount of source code, but DI-related questions are typically design questions and it is impossible to feedback on your design when you reduce your interfaces and classes to e.g. `IFoo`, `Flux` and `Baz`.
 * Include **complete stack trace including all exception details** of the exception and all inner exceptions in case an exception is thrown.
 * Do **not include screen shots** of [code](https://idownvotedbecau.se/imageofcode), but provide actual code
+* Do ensure that code listing don't have a **line width that exceeds 100 characters**, as that would cause horizontal scrollbars, which make it harder to view the code.
 * Do not include screen shots of [exceptions](https://idownvotedbecau.se/imageofanexception/), but paste the actual exception details
 * Make sure that code and exception details are [formatted correctly](https://help.github.com/en/articles/creating-and-highlighting-code-blocks) and ideally include the programming language (typically `c#`). This way GitHub will highlight the code automatically.
 * Follow the guidelines given by Stack Overflow and [IDownvotedBecau.se](https://idownvotedbecau.se/) about asking good questions.