[TT-12885] Add plugin development guide for manual builds

.vale.ini

@@ -0,0 +1,6 @@
+StylesPath = .vale/styles
+MinAlertLevel = error
+Vocab = Tyk
+
+[*.md]
+BasedOnStyles = Tyk, write-good

.vale/styles/config/vocabularies/Tyk/accept.txt

@@ -0,0 +1,130 @@
+analytics
+API
+api
+apim
+APIs
+apis
+AuthToken
+AWS
+balancer
+blockprof
+blockprofile
+blockquote
+CMS
+CNAME
+conf
+config
+CoProcess
+coprocess
+cpuprofile
+crypto
+CSRF
+Datasource
+DataSources
+dereference
+dev
+DRL
+elasticsearch
+ELB
+enum
+Etcd
+Github
+Golang
+golang
+goroutine
+goroutines
+GraphQL
+graphql
+hmac
+HMAC
+http
+HTTP
+httpbin
+httpprofile
+https
+HTTPS
+IAM
+IDP
+init
+img
+io
+IoT
+JQ
+jq
+JSON
+json
+JSVM
+JWK
+JWKs
+JWT
+keyless
+lastmod
+MDCB   
+memprofile
+microservice
+middleware
+MongoDB
+MPL
+mprof
+mTLS
+Mutex
+mutex
+mutexes
+mutexprof
+mutexprofile
+namespace
+natively
+OAuth2.0
+OpenAPI
+packagecloud
+Param
+param
+pem
+PEM
+performant
+pprof
+profiler
+Proxied
+proxied
+proxying
+Pump
+querystring
+Quickstart
+Rebase
+rebase
+Redis
+runtime
+schemas
+SHA
+sha
+sharded
+SSL
+ssl
+SSO
+sso
+stderr
+stdout
+sudo
+Swagger
+swagger
+TCP
+TIB
+tls
+TLS
+Tyk
+tyk
+Tyk's
+Tyk-Dashboard
+Tyk-Gateway
+Tyk-Pump
+Tyk-Sync
+TykMakeBatchRequest
+TykMakeHttpRequest
+TykTechnologies
+UDG
+UI
+unmarshal
+uptime
+Uptime
+uptime
+url