docs: remove dead links (#5729)

changes/changes-5.x.md

@@ -173,7 +173,7 @@
  
 #### UI Changes
   - New trace query UI.
-  - New Application UI, merge server tab(removed) into applciation as sub page.
+  - New Application UI, merge server tab(removed) into application as sub page.
   - New Topology UI.
   - New response time / throughput TopN list.
   - Add Thermodynamic chart in overview page.
@@ -228,4 +228,4 @@
 #### UI Changes
  - New 5.0.0 UI!!!
  
- [Issues and Pull requests](https://github.com/apache/incubator-skywalking/milestone/17?closed=1)
\ No newline at end of file
+ [Issues and Pull requests](https://github.com/apache/incubator-skywalking/milestone/17?closed=1)

docs/README.md

@@ -24,8 +24,6 @@ In addition, you might find these links interesting:
 
 - [SkyWalking WIKI](https://cwiki.apache.org/confluence/display/SKYWALKING/Home) hosts the context of some changes and events.
 
-- Up-to-date overview of SkyWalking module [call flow](https://sourcespy.com/github/skywalking/xx-omcalls-.html) and [hierarchy](https://sourcespy.com/github/skywalking/xx-omhierarchy-.html) including ability to analize each module individually.
-
 - You can find the speaking schedules at Conf, online videos and articles about SkyWalking in [Community resource catalog](https://github.com/OpenSkywalking/Community).
 
 We're always looking for help improving our documentation and codes, so please don’t hesitate to [file an issue](https://github.com/apache/skywalking/issues/new) 

docs/en/setup/backend/dynamic-config.md

@@ -6,12 +6,12 @@ Right now, SkyWalking supports following dynamic configurations.
 
 | Config Key | Value Description | Value Format Example |
 |:----:|:----:|:----:|
-|agent-analyzer.default.slowDBAccessThreshold| Thresholds of slow Database statement, override `receiver-trace/default/slowDBAccessThreshold` of `applciation.yml`. | default:200,mongodb:50|
+|agent-analyzer.default.slowDBAccessThreshold| Thresholds of slow Database statement, override `receiver-trace/default/slowDBAccessThreshold` of `application.yml`. | default:200,mongodb:50|
 |agent-analyzer.default.uninstrumentedGateways| The uninstrumented gateways, override `gateways.yml`. | same as [`gateways.yml`](uninstrumented-gateways.md#configuration-format) |
 |alarm.default.alarm-settings| The alarm settings, will override `alarm-settings.yml`. | same as [`alarm-settings.yml`](backend-alarm.md) |
 |core.default.apdexThreshold| The apdex threshold settings, will override `service-apdex-threshold.yml`. | same as [`service-apdex-threshold.yml`](apdex-threshold.md) |
 |core.default.endpoint-name-grouping| The endpoint name grouping setting, will override `endpoint-name-grouping.yml`. | same as [`endpoint-name-grouping.yml`](endpoint-grouping-rules.md) |
-|agent-analyzer.default.sampleRate| Trace sampling , override `receiver-trace/default/sampleRate` of `applciation.yml`. | 10000 |
+|agent-analyzer.default.sampleRate| Trace sampling , override `receiver-trace/default/sampleRate` of `application.yml`. | 10000 |
 
 This feature depends on upstream service, so it is **DISABLED** by default.
 
@@ -140,4 +140,4 @@ configuration:
     period: ${SW_CONFIG_NACOS_PERIOD:60}
     # the name of current cluster, set the name if you want to upstream system known.
     clusterName: ${SW_CONFIG_NACOS_CLUSTER_NAME:default}
-```
\ No newline at end of file
+```