Created LABELS.md (#3981)

* Created LABELS.md

This summarizes the various labels and tags used by the organization for faster reviews and keeping the repo organized.

* Update LABELS.md

doc/LABELS.md

@@ -0,0 +1,35 @@
+# Labels used at Public Lab
+At Public Lab, we use many different labels and tags to keep up with issues and pull requests.
+
+We use these labels and tags to mainly help our reviewers/maintainers review our work and also, these labels keep our **plots2** repository organized.
+
+Before contributing to the organization, one should be aware of these and keep them in mind while creating any isues or pull requests.
+
+## Issue labels
+For keeping the issues in a systematic way, we use labels which describe the type of issue, the  ` programming language ` used in the issue and so on.
+Some of the most used labels are:-
+* ` help-wanted ` which indicates the issue requires help by anyone willing to contribute.
+* ` bug ` which tells that the issue is regarding one of our programs which faces problems when a certain task is executed.
+* ` break-me-up ` says that this certain issue could be and should be broken into smaller self-contained projects for cleaner code separation, more discrete tests, and, easier and iterative collaboration.
+* Labels like ` HTML ` , ` CSS ` , ` Ruby ` and ` JavaScript ` tell the **programming language** of the issue.
+* ` design ` - This says that the issue requires more design work and discussion (i.e. mockups and sketches).
+* ` outreach ` - The outreach issues involve community involvement and helping people who're stuck somewhere.
+* Some issues have been labeled with ` fto-candidate ` , ` gci-candidate ` and ` rgsoc ` which mean that these issues have been reserved for students who're participating in these events.
+
+## Pull request labels
+For faster review and adoption, we add labels to pull requests too.
+Some commonly used PR labels are:-
+* ` in-progress ` - This indicates that the pull request is still being worked upon.
+* ` needs-help ` - This says that someone is stuck somewhere and needs help to figure that out.
+* ` review-me ` - This means seeking for review from Public Lab reviewers.
+* ` ready ` - This is used after using the ` review-me ` . This means that the PR is ready for merge.
+
+For pull requests marked with *in progress*, *needs-help*, or *review-me*, here's a checklist of things you can ask for to help a project towards completion:
+
+  * 🎉 encouragement 😄 👍
+  * 🔗 links to original issues that they solve with fixes #0000 format in issue body
+  * ✍️ more descriptive titles (for quick scanning down a list)
+  * 🐞 debugging (if Travis tests did not pass)
+  * 👩‍💻 any tips/suggestions on the code itself -- especially simplifying or reducing repetition, increasing readability
+  * ✔️ tests to safeguard the new code
+  * 📸 screenshots please, if it includes a new design or behavior!