doc: update issue and PR templates

.github/issue_template.md

@@ -14,9 +14,9 @@ INSERT CODE HERE
 #### System information
 <!-- Please report the complete output from checkInstallation, for instance:
  > Installing from location             C:\Work\GitHub\RAVEN
- > Checking RAVEN release               2.7.12
+ > Checking RAVEN release               2.8.6
    > You are running the latest RAVEN release
- > Checking MATLAB release              2022a
+ > Checking MATLAB release              2023b
  > Checking system architecture         win64
  > Set RAVEN in MATLAB path             Pass
  > Save MATLAB path                     Pass
@@ -26,4 +26,4 @@ etc. etc.
 
 **I hereby confirm that I have:**
 <!-- Note: replace [ ] with [X] to check the box -->
-- [ ] Checked that a similar issue does not [already exist](https://github.com/SysBioChalmers/RAVEN/issues?utf8=%E2%9C%93&q=is%3Aissue)
+- [ ] Checked that a similar issue does not [already exist](https://github.com/SysBioChalmers/RAVEN/issues?q=is%3Aissue) or is already [discussed](https://github.com/SysBioChalmers/RAVEN/discussions).

.github/pull_request_template.md

@@ -1,8 +1,14 @@
 ### Main improvements in this PR:
 <!-- Pointwise mention what changes were made in what function. Examples: 
-- fix bug where `functionName` failed to do function X
-- updated all documentation -->
+- Fixes:
+  - `functionName` failed to do action X
+- Documentation:
+  - Updated all documentation 
+- Features:
+  - Introduced option to do function Y (issue #12345) -->
 
-**I hereby confirm that I have:**
-<!-- Note: replace [ ] with [X] to check the box -->
-- [ ] Selected `develop` as a target branch
+#### Instructions on merging this PR:
+<!-- Chose ONE of the following two options
+and replace [ ] with [X] to check the box.-->
+- [ ] This PR has `develop` as target branch, and will be resolved with a *squash-merge*.
+- [ ] This PR has `main` as target branch, and will be resolved with a *merge commit*.