Remove outdated references to versionbot

Change-type: patch

.cspell/balena-words.txt

@@ -35,6 +35,5 @@ Seeed
 sshproxy
 testbot
 undiscounted
-versionbot
 Versionist
-volume-pricing
+volume-pricing

CONTRIBUTING.md

@@ -6,7 +6,7 @@ Thank you for contributing to the docs! We have a few guidelines which will allo
 
 > **TL:DR** The docs version numbering adheres to [Semantic Versioning](https://semver.org/). **Please include *at least one commit* in the PR that marks the change-type for the system.** 
 
-This change-type can be specified by adding it as a prefix, i.e., `minor: Add some new feature` while creating the commit. This is so the PR can be automatically versioned and a changelog generated for it by using versionbot. One can choose one of 3 `Change-type` options on the nature of the file change. 
+This change-type can be specified by adding it as a prefix, i.e., `minor: Add some new feature` while creating the commit. This is so the PR can be automatically versioned and a changelog generated for it by using versionist. One can choose one of 3 `Change-type` options on the nature of the file change. 
 
 - `patch` - For tiny changes that include typo fixes, updating screenshots, adding clarification notes, etc.
 - `minor` - For moderate changes that include updating packages, rewriting documentation, adding new features.
@@ -112,19 +112,5 @@ Be sure to familiarize yourself with the style manual and conventions to be foll
 - [Conventions & Best Practices](README.md#conventions--best-practices)
 - Using [Partials](README.md#using-partials) and [Templates](README.md#using-templates)
 
-## [balenistas only] Using Versionbot to manage the pull request
-
-Versionbot is a helper utility to make managing of the pull request easier. Here's a list of commands supported by VersionBot:
-
-- `@balena-ci I self-certify!` - use [the self-certification flow](https://docs.google.com/drawings/d/1aoXCdi8bzinxaLM0BoKMJaiZjIJj5Az02Npw_L2iQkE/edit?usp=sharing) for this PR
-- `@balena-ci test` - trigger the tests for this PR
-- `@balena-ci retest` - trigger retests for the PR
-- `@balena-ci version` - generate the versioned branch for your PR
-- `@balena-ci rebase` - rebase the PR (Use this to update your branch)
-
-![](https://user-images.githubusercontent.com/22801822/114602349-22fd3d00-9cb4-11eb-905b-721488e64dc6.png)
-
-One can use these commands to manage, rebase or merge their own PR's as and when needed. We recommend using these commands to merge the PR if it's ready to be merged. One can issue the commands in the comments dialog box present at the bottom of the PR. 
-
 
 [reference text]: https://balena.io

pages/learn/more/glossary.md

@@ -412,10 +412,6 @@ A 128-bit label used for information in computer systems
 
 ## V
 
-### VersionBot
-**(balena specific term)**
-VersionBot is a Github application that we use as our CI/CD tool. It is in charge of linting, validating, building and deploying or publishing our code. Eventually we would want to integrate it with BalenaCloud so that it can be offered as a service to our users.
-
 ## W
 
 ### WiFi Connect
@@ -434,4 +430,4 @@ See [*improvement group*](#improvement-group)
 The Yocto Project is an open source collaboration project that helps developers create custom Linux-based systems regardless of the hardware architecture. balenaOS is built upon Yocto.
 [more](https://www.yoctoproject.org/)
 
-## Z
+## Z