Mermaid syntax references

A concise rewrite of the mermaid documentation for quick lookups.

Meta:

• Overview (comments, configuring, etc)

Example	Code
flowchart LR A[Start] --> B{Should you?} B -- Yes --> C{{Do it}} B -- Maybe --> D[(Save for later)] B -- No --> E[Okay] Loading	flowchart LR A[Start] --> B{Should you?} B -- Yes --> C{{Do it}} B -- Maybe --> D[(Save for later)] B -- No --> E[Okay] 1: Flowchart syntax
sequenceDiagram Alice ->>+ Bob: Here's a message! Bob ->>- Alice: Hmm, ok, thanks. Loading	sequenceDiagram Alice ->>+ Bob: Here's a message! Bob ->>- Alice: Hmm, ok, thanks. 2: Sequence diagram syntax
classDiagram class ClassName { String stringName Long longName MyDatatype attributeName functionName(parameter) ReturnType functionName2(parameter2) ReturnType } class Interface { Int intName } ClassName --|> Interface Loading	classDiagram class ClassName { String stringName Long longName MyDatatype attributeName functionName(parameter) ReturnType functionName2(parameter2) ReturnType } class Interface { Int intName } ClassName --|> Interface 3: Class diagram syntax
	4: State
	5: Entity Relationship
	6: User Journey
	7: Gantt
	8: Pie
	9: Requirement
	10: Others