Use mdast-util-from-markdown instead of simple-markdown

docs/config/setup/modules/mermaidAPI.md

@@ -96,7 +96,7 @@ mermaid.initialize(config);
 
 #### Defined in
 
-[mermaidAPI.ts:673](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L673)
+[mermaidAPI.ts:667](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L667)
 
 ## Functions
 
@@ -127,7 +127,7 @@ Return the last node appended
 
 #### Defined in
 
-[mermaidAPI.ts:312](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L312)
+[mermaidAPI.ts:306](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L306)
 
 ---
 
@@ -153,7 +153,7 @@ the cleaned up svgCode
 
 #### Defined in
 
-[mermaidAPI.ts:263](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L263)
+[mermaidAPI.ts:257](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L257)
 
 ---
 
@@ -179,7 +179,7 @@ the string with all the user styles
 
 #### Defined in
 
-[mermaidAPI.ts:192](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L192)
+[mermaidAPI.ts:186](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L186)
 
 ---
 
@@ -202,7 +202,7 @@ the string with all the user styles
 
 #### Defined in
 
-[mermaidAPI.ts:240](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L240)
+[mermaidAPI.ts:234](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L234)
 
 ---
 
@@ -229,7 +229,7 @@ with an enclosing block that has each of the cssClasses followed by !important;
 
 #### Defined in
 
-[mermaidAPI.ts:176](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L176)
+[mermaidAPI.ts:170](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L170)
 
 ---
 
@@ -295,7 +295,7 @@ Put the svgCode into an iFrame. Return the iFrame code
 
 #### Defined in
 
-[mermaidAPI.ts:291](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L291)
+[mermaidAPI.ts:285](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L285)
 
 ---
 
@@ -320,4 +320,4 @@ Remove any existing elements from the given document
 
 #### Defined in
 
-[mermaidAPI.ts:362](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L362)
+[mermaidAPI.ts:356](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L356)

docs/syntax/flowchart.md

@@ -55,7 +55,45 @@ flowchart LR
     id1[This is the text in the box]
 ```
 
-## Graph
+#### Unicode text
+
+Use `"` to enclose the unicode text.
+
+```mermaid-example
+flowchart LR
+    id["This ❤ Unicode"]
+```
+
+```mermaid
+flowchart LR
+    id["This ❤ Unicode"]
+```
+
+#### Markdown formatting
+
+Use double quotes and backticks "\` text \`" to enclose the markdown text.
+
+```mermaid-example
+%%{init: {"flowchart": {"htmlLabels": false}} }%%
+flowchart LR
+    markdown["`This **is** _Markdown_`"]
+    newLines["`Line1
+    Line 2
+    Line 3`"]
+    markdown --> newLines
+```
+
+```mermaid
+%%{init: {"flowchart": {"htmlLabels": false}} }%%
+flowchart LR
+    markdown["`This **is** _Markdown_`"]
+    newLines["`Line1
+    Line 2
+    Line 3`"]
+    markdown --> newLines
+```
+
+### Direction
 
 This statement declares the direction of the Flowchart.
 
@@ -83,15 +121,13 @@ flowchart LR
     Start --> Stop
 ```
 
-## Flowchart Orientation
-
 Possible FlowChart orientations are:
 
-- TB - top to bottom
-- TD - top-down/ same as top to bottom
-- BT - bottom to top
-- RL - right to left
-- LR - left to right
+- TB - Top to bottom
+- TD - Top-down/ same as top to bottom
+- BT - Bottom to top
+- RL - Right to left
+- LR - Left to right
 
 ## Node shapes