[skywalking] branch 8.3.0/docs-hotfix created (now 81a0aa4)

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      at 81a0aa4  Update backend-fetcher.md (#5972)

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     new 81a0aa4  Update backend-fetcher.md (#5972)

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[skywalking] 01/01: Update backend-fetcher.md (#5972)

[wu...@apache.org]

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wusheng pushed a commit to branch 8.3.0/docs-hotfix
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commit 81a0aa424a86c23c003d6ac8f352fe1ace776461
Author: Gao Hongtao <ha...@gmail.com>
AuthorDate: Tue Dec 8 23:02:31 2020 +0800

    Update backend-fetcher.md (#5972)
---
 CHANGES.md                                 | 2 +-
 docs/en/setup/backend/backend-fetcher.md   | 5 ++++-
 docs/en/setup/backend/backend-telemetry.md | 2 +-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index 3acc1c7..ed67997 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -14,7 +14,7 @@ Release Notes.
 
 
 #### Documentation
-
+* Update the documents of backend fetcher and self observability about the latest configurations.
 
 All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/68?closed=1)
 
diff --git a/docs/en/setup/backend/backend-fetcher.md b/docs/en/setup/backend/backend-fetcher.md
index 95a5818..dd7c376 100644
--- a/docs/en/setup/backend/backend-fetcher.md
+++ b/docs/en/setup/backend/backend-fetcher.md
@@ -3,11 +3,14 @@ Fetcher is a concept in SkyWalking backend. It uses pulling mode rather than [re
 read the data from the target systems. This mode is typically in some metrics SDKs, such as Prometheus.
 
 ## Prometheus Fetcher
+Suppose you want to enable some `metric-custom.yaml` files stored at `fetcher-prom-rules`, append its name to `enabledRules` of 
+ `promethues-fetcher` as below:
+ 
 ```yaml
 prometheus-fetcher:
   selector: ${SW_PROMETHEUS_FETCHER:default}
   default:
-    active: ${SW_PROMETHEUS_FETCHER_ACTIVE:false}
+    enabledRules: ${SW_PROMETHEUS_FETCHER_ENABLED_RULES:"self,metric-custom"}
 ```
 
 ### Configuration file
diff --git a/docs/en/setup/backend/backend-telemetry.md b/docs/en/setup/backend/backend-telemetry.md
index 7f7efc0..5f9e3f0 100644
--- a/docs/en/setup/backend/backend-telemetry.md
+++ b/docs/en/setup/backend/backend-telemetry.md
@@ -74,7 +74,7 @@ telemetry:
 prometheus-fetcher:
   selector: ${SW_PROMETHEUS_FETCHER:default}
   default:
-    active: ${SW_PROMETHEUS_FETCHER_ACTIVE:true}
+    enabledRules: ${SW_PROMETHEUS_FETCHER_ENABLED_RULES:"self"}
 ``` 
 
 3. Make sure `config/fetcher-prom-rules/self.yaml` exists.