add contributing guidelines and update github stuff

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,4 +1,4 @@
-<!-- Guidelines: https://docs.spacestation14.io/en/getting-started/pr-guideline -->
+<!-- If you are new to the Delta-V repository, please read the [Contributing Guidelines](https://github.com/DeltaV-Station/Delta-v/blob/master/CONTRIBUTING.md) -->
 
 ## About the PR
 <!-- What did you change? -->
@@ -10,23 +10,22 @@
 <!-- Summary of code changes for easier review. -->
 
 ## Media
-<!-- Attach media if the PR makes ingame changes (clothing, items, features, etc). 
-Small fixes/refactors are exempt. Media may be used in SS14 progress reports with credit. -->
+<!-- Attach media if the PR makes ingame changes (clothing, items, features, etc).
+Small fixes/refactors are exempt. -->
 
 ## Requirements
 <!-- Confirm the following by placing an X in the brackets [X]: -->
-- [ ] I have read and am following the [Pull Request and Changelog Guidelines](https://docs.spacestation14.com/en/general-development/codebase-info/pull-request-guidelines.html).
+- [ ] I have tested all added content and changes.
 - [ ] I have added media to this PR or it does not require an ingame showcase.
 <!-- You should understand that not following the above may get your PR closed at maintainer’s discretion -->
 
 ## Breaking changes
-<!-- List any breaking changes, including namespaces, public class/method/field changes, prototype renames; and provide instructions for fixing them.
-This will be posted in #codebase-changes. -->
+<!-- List any breaking changes, including namespaces, public class/method/field changes, prototype renames; and provide instructions for fixing them. -->
 
 **Changelog**
 <!-- Add a Changelog entry to make players aware of new features or changes that could affect gameplay.
 Make sure to read the guidelines and take this Changelog template out of the comment block in order for it to show up.
-Changelog must have a :cl: symbol, so the bot recognizes the changes and adds them to the game's changelog. -->
+Changelogs must have a :cl: symbol, so the bot recognizes the changes and adds them to the game's changelog. -->
 <!--
 :cl:
 - add: Added fun!

CONTRIBUTING.md

@@ -0,0 +1,80 @@
+# Delta-V Contributing Guidelines
+
+Generally we follow [upstream's PR guidelines](https://docs.spacestation14.com/en/general-development/codebase-info/pull-request-guidelines.html) for code quality and such.
+
+Upstream is the [space-wizards/space-station-14](https://github.com/space-wizards/space-station-14) repository that wizden runs on.
+
+# Content specific to Delta-V
+
+In general anything you create from scratch (not modifying something that exists from upstream) should go in a DeltaV subfolder.
+
+Examples:
+- `Content.Server/DeltaV/Chapel/SacrificialAltarSystem.cs`
+- `Resources/Prototypes/DeltaV/ai_factions.yml`
+- `Resources/Audio/DeltaV/Items/gavel.ogg`
+- `Resources/Textures/DeltaV/Icons/cri.rsi`
+- `Resources/Locale/en-US/deltav/shipyard/shipyard-console.ftl`
+  The locale subfolder is lowercase `deltav` instead of `DeltaV`.
+- `Resources/ServerInfo/Guidebook/DeltaV/AlertProcedure.xml`
+  Note that guidebooks go in `ServerInfo/Guidebook/DeltaV` and not `ServerInfo/DeltaV`!
+
+# Changes to upstream files
+
+If you make a change to an upstream C# or YAML file **you must add comments on or around the changed lines**.
+The comments should clarify what changed, to make conflict resolution simpler when a file is changed upstream.
+
+For YAML specifically, if you add a new component to a prototype add the comment to the `type: ...` line.
+If you just modify some fields of a component, comment the fields instead.
+
+For C# files, if you are adding a lot of code try to put it in a partial class when it makes sense.
+
+The exception to this is early merging commits that are going to be cherry picked in the future regardless, there's no harm in leaving them as-is.
+
+As an aside, fluent (.ftl) files **do not support comments on the same line** as a locale value, so be careful when changing them.
+
+## Examples of comments in upstream files
+
+A single line comment on a changed yml field:
+```yml
+- type: entity
+  parent: BasePDA
+  id: SciencePDA
+  name: epistemics PDA # DeltaV - Epistemics Department replacing Science
+```
+
+A pair of comments enclosing a list of added items to starting gear:
+```yml
+  storage:
+    back:
+    - EmergencyRollerBedSpawnFolded
+    # Begin DeltaV additions
+    - BodyBagFolded
+    - Portafib
+    # End DeltaV additions
+```
+
+A comment on a new imported namespace:
+```cs
+using Content.Server.Psionics.Glimmer; // DeltaV
+```
+
+A pair of comments enclosing a block of added code:
+```cs
+private EntityUid Slice(...)
+{
+    ...
+
+    _transform.SetLocalRotation(sliceUid, 0);
+
+    // DeltaV - start of deep frier stuff
+    var slicedEv = new FoodSlicedEvent(user, uid, sliceUid);
+    RaiseLocalEvent(uid, ref slicedEv);
+    // DeltaV - end of deep frier stuff
+
+    ...
+}
+```
+
+# Additional resources
+
+If you are new to contributing to SS14 in general, have a look at the [SS14 docs](https://docs.spacestation14.io/) or ask for help in `#contribution-help` on [Discord](https://go.delta-v.org/AtDxv)!

README.md

@@ -26,8 +26,7 @@ We are happy to accept contributions from anybody. Get in Discord if you want to
 
 We are currently accepting translations of the game on our main repository. If you would like to translate the game into another language check the #localization channel in our [Discord](https://go.delta-v.org/AtDxv)
 
-If you make any contributions, please make sure to read the markers section in [MARKERS.md](https://github.com/DeltaV-Station/Delta-v/blob/master/MARKERS.md)
-Any changes made to files belonging to our upstream should be properly marked in accordance to what is specified there.
+Make sure to read [CONTRIBUTING.md](/CONTRIBUTING.md) if you are new to Delta-V!
 
 ## Building