[site] Custom language support: links to community where possible (except derived classes overrides)
[site] Custom language support: links to community where possible (except derived classes overrides)

artspb/intellij-sdk-docs,JetBrains/intellij-sdk-docs,chashnikov/intellij-sdk-docs,JetBrains/intellij-sdk-docs,chashnikov/intellij-sdk-docs,chashnikov/intellij-sdk-docs,breandan/intellij-sdk-docs,breandan/intellij-sdk-docs,JetBrains/intellij-sdk-docs,artspb/intellij-sdk-docs,develar/intellij-sdk-docs,artspb/intellij-sdk-docs,chashnikov/intellij-sdk-docs,develar/intellij-sdk-docs,develar/intellij-sdk-docs,artspb/intellij-sdk-docs,breandan/intellij-sdk-docs