fix: typos in github templates

.github/ISSUE_TEMPLATE.md

@@ -1,6 +1,6 @@
 <!--
 Are you wondering how to do something with Lolex, or something else that is purely
-usage related? Please post it to StackOverflow using the `sinon` and `lolex`labels.
+usage related? Please post it to StackOverflow using the `sinon` and `lolex` labels.
 This makes it possible for the bigger community to help answer your questions.
 
 The issue tracker is solely meant for posting bugs, feature requests and non-usage related issues.
@@ -19,7 +19,7 @@ The issue tracker is solely meant for posting bugs, feature requests and non-usa
 **What actually happens**
 
 **How to reproduce**
-> Describe *with code* how to reproduce the faulty behaviour,
+> Describe *with code* how to reproduce the faulty behaviour
 > or link to code on JSBin or similar
 
 <!-- Delete the section below if it is irrelevant to your issue -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,6 @@
 #### Purpose (TL;DR) - mandatory
 <!--
-> give a concise (one or two short sentences) description of what what problem is being solved by this PR
+> give a concise (one or two short sentences) description of what problem is being solved by this PR
 >
 > Example: Fix issue #123456 by re-structuring the colour selection conditional in method `paintBlue`
 -->
@@ -13,7 +13,7 @@
 > When relevant, give a more thorough description of what the problem the PR is trying to solve. Examples of good topics for this section are:
 > * Link to an existing GitHub issue describing the problem
 > * Describing the problem in greater detail than the TL;DR section above
-> * How you discovered the issue, if it's not already described as an issue on GitHub
+> * How you discovered the issue if it's not already described as an issue on GitHub
 > * Discussion of different approaches to solving this problem and why you chose your proposed solution
 -->