Improve grammar in issue template

Author: Nelson-Gon

.github/issue_template.md

@@ -1,17 +1,17 @@
 ### Prerequisites
 
-+ [ ] Have you read [Feedback](https://guangchuangyu.github.io/clusterprofiler/#feedback) and follow the [guide](https://guangchuangyu.github.io/2016/07/how-to-bug-author/)?
-	* [ ] make sure your are using the latest release version
-	* [ ] read the [documents](https://guangchuangyu.github.io/clusterprofiler/documentation/)
++ [ ] Have you read [Feedback](https://guangchuangyu.github.io/clusterprofiler/#feedback) and followed the [guide](https://guangchuangyu.github.io/2016/07/how-to-bug-author/)?
+	* [ ] make sure you are using the latest release version
+	* [ ] read the [documentation](https://guangchuangyu.github.io/clusterprofiler/documentation/)
 	* [ ] google your quesion/issue
 
-### Describe you issue
+### Describe your issue
 
 * [ ] Make a reproducible example (*e.g.* [1](https://gist.github.com/talonsensei/e1fad082657054207f249ec98f0920eb))
-* [ ] your code should contain comments to describe the problem (*e.g.* what expected and actually happened?)
+* [ ] your code should contain comments to describe the problem (*e.g.* what you expected and what actually happened)
 
 
-### Ask in right place
+### Ask in the right place
 
 * [ ] for bugs or feature requests, post here (github issue)
-* [ ] for questions, please post to [Bioconductor](https://support.bioconductor.org/) or [Biostars](https://www.biostars.org/) with tag `clusterProfiler`
+* [ ] for questions, please post to [Bioconductor](https://support.bioconductor.org/) or [Biostars](https://www.biostars.org/) with the tag `clusterProfiler`