Revise concurrency.md with new activity details

Updated concurrency documentation with new diagrams and explanations.

Author: rmcdaniel

docs/features/concurrency.md

@@ -100,10 +100,6 @@ class MyWorkflow extends Workflow
 }
 ```
 
-[![](https://mermaid.ink/img/pako:eNpVUstuwjAQ_JVozwElthMFHyrR0h6qREKUUxsOLjHEamIjx2lLEf9e54XMnjyzM7NeyxfYq4IDhUOlfvYl08bbrnKZS8_W8iM7L_dGfAtzDncT27SfR81Opbd-_Ni0svGE9NZMs6ri1W6QdFUIza1XSS_dTNY7e_r8sr0FvHEteOPYu0pD5wJo581mD16KHA47Bi4Ld0xGHB1xdFnkNKKxMZrHtYdBoYsycoeiSZuinnh1MuMxMyNDa0TRhMCHoxYFUKNb7kPNdc06CJdOmYMpec1zoPZYMP2VQy6v1nNi8l2perJp1R5LoAdWNRa1p4IZvhLMPm19Y7Vdi-sn1UoDNFqQPgToBX6B4jCZLyJbQYiCJMbYhzPQEAfzmJAFIihGBCdXH_76oZZGuKcICTBCSeIDL4RROhv-T_-Nrv-BIKzD?type=png)](https://mermaid.live/edit#pako:eNpVUstuwjAQ_JVozwElthMFHyrR0h6qREKUUxsOLjHEamIjx2lLEf9e54XMnjyzM7NeyxfYq4IDhUOlfvYl08bbrnKZS8_W8iM7L_dGfAtzDncT27SfR81Opbd-_Ni0svGE9NZMs6ri1W6QdFUIza1XSS_dTNY7e_r8sr0FvHEteOPYu0pD5wJo581mD16KHA47Bi4Ld0xGHB1xdFnkNKKxMZrHtYdBoYsycoeiSZuinnh1MuMxMyNDa0TRhMCHoxYFUKNb7kPNdc06CJdOmYMpec1zoPZYMP2VQy6v1nNi8l2perJp1R5LoAdWNRa1p4IZvhLMPm19Y7Vdi-sn1UoDNFqQPgToBX6B4jCZLyJbQYiCJMbYhzPQEAfzmJAFIihGBCdXH_76oZZGuKcICTBCSeIDL4RROhv-T_-Nrv-BIKzD)
-
-Activity 1 will execute and complete before any other activities start. Activities 2 and 3 will execute in series, waiting for each to complete one after another before continuing. At the same time, activities 4 and 5 will execute together in parallel and only when they all complete will execution continue. Finally, activity 6 executes last after all others have completed.
-
 <ConcurrencySimulator 
   activities={[
     { name: 'MyActivity1', duration: 1200, group: 0 },
@@ -117,6 +113,10 @@ Activity 1 will execute and complete before any other activities start. Activiti
   title="Mix and Match Simulator"
 />
 
+[![](https://mermaid.ink/img/pako:eNpVUstuwjAQ_JVozwElthMFHyrR0h6qREKUUxsOLjHEamIjx2lLEf9e54XMnjyzM7NeyxfYq4IDhUOlfvYl08bbrnKZS8_W8iM7L_dGfAtzDncT27SfR81Opbd-_Ni0svGE9NZMs6ri1W6QdFUIza1XSS_dTNY7e_r8sr0FvHEteOPYu0pD5wJo581mD16KHA47Bi4Ld0xGHB1xdFnkNKKxMZrHtYdBoYsycoeiSZuinnh1MuMxMyNDa0TRhMCHoxYFUKNb7kPNdc06CJdOmYMpec1zoPZYMP2VQy6v1nNi8l2perJp1R5LoAdWNRa1p4IZvhLMPm19Y7Vdi-sn1UoDNFqQPgToBX6B4jCZLyJbQYiCJMbYhzPQEAfzmJAFIihGBCdXH_76oZZGuKcICTBCSeIDL4RROhv-T_-Nrv-BIKzD?type=png)](https://mermaid.live/edit#pako:eNpVUstuwjAQ_JVozwElthMFHyrR0h6qREKUUxsOLjHEamIjx2lLEf9e54XMnjyzM7NeyxfYq4IDhUOlfvYl08bbrnKZS8_W8iM7L_dGfAtzDncT27SfR81Opbd-_Ni0svGE9NZMs6ri1W6QdFUIza1XSS_dTNY7e_r8sr0FvHEteOPYu0pD5wJo581mD16KHA47Bi4Ld0xGHB1xdFnkNKKxMZrHtYdBoYsycoeiSZuinnh1MuMxMyNDa0TRhMCHoxYFUKNb7kPNdc06CJdOmYMpec1zoPZYMP2VQy6v1nNi8l2perJp1R5LoAdWNRa1p4IZvhLMPm19Y7Vdi-sn1UoDNFqQPgToBX6B4jCZLyJbQYiCJMbYhzPQEAfzmJAFIihGBCdXH_76oZZGuKcICTBCSeIDL4RROhv-T_-Nrv-BIKzD)
+
+Activity 1 will execute and complete before any other activities start. Activities 2 and 3 will execute in series, waiting for each to complete one after another before continuing. At the same time, activities 4 and 5 will execute together in parallel and only when they all complete will execution continue. Finally, activity 6 executes last after all others have completed.
+
 ## Child Workflows in Parallel
 
 You can pass child workflows to `all()` along with other activities. It works the same way as parallel activity execution, but for child workflows. It allows you to fan out multiple child workflows and wait for all of them to complete together.