Add basic operators to the syntax widget

misc_docs/syntax/operators_float_addition.mdx

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+---
+id: "float-addition"
+keywords: ["plus", "add", "addition", "sum", "float"]
+name: "+."
+summary: "This is the `floating point addition` operator."
+category: "operators"
+---
+
+This operator performs *floating point* addition.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let result = 1.3 +. 0.5
+```
+
+```js
+var result = 1.3 + 0.5;
+```
+
+</CodeTab>
+
+For adding *integers* see the `+` operator.

misc_docs/syntax/operators_float_division.mdx

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+---
+id: "float-division"
+keywords: ["divide", "division", "float"]
+name: "/."
+summary: "This is the `floating point division` operator."
+category: "operators"
+---
+
+This operator performs *floating point* division.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let result = 3.0 /. 2.5
+```
+
+```js
+var result = 3.0 / 2.5;
+```
+
+</CodeTab>
+
+For dividing *integers* see the `/` operator.

misc_docs/syntax/operators_float_multiplication.mdx

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+---
+id: "float-multiplication"
+keywords: ["multiply", "multiplication", "float"]
+name: "*."
+summary: "This is the `floating point multiplication` operator."
+category: "operators"
+---
+
+This operator performs *floating point* multiplication.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let result = 1.5 *. 2.3
+```
+
+```js
+var result = 1.5 * 2.3;
+```
+
+</CodeTab>
+
+For multiplying *integers* see the `*` operator.

misc_docs/syntax/operators_float_subtraction.mdx

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+---
+id: "float-subtraction"
+keywords: ["subtract", "minus", "subtraction", "float"]
+name: "-."
+summary: "This is the `floating point subtraction` operator."
+category: "operators"
+---
+
+This operator performs *floating point* subtraction.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let result = 3.0 -. 2.5
+```
+
+```js
+var result = 3.0 - 2.5;
+```
+
+</CodeTab>
+
+For subtracting *integers* see the `-` operator.

misc_docs/syntax/operators_integer_addition.mdx

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+---
+id: "integer-addition"
+keywords: ["plus", "add", "addition", "sum", "int", "integer"]
+name: "+"
+summary: "This is the `integer addition` operator."
+category: "operators"
+---
+
+This operator performs *integers* addition.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let result = 1 + 2
+```
+
+```js
+val result = 3;
+```
+
+</CodeTab>
+
+For adding *floats* see the `+.` operator.
+
+For contatenating *strings* see the `++` operator.

misc_docs/syntax/operators_integer_division.mdx

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+---
+id: "integer-division"
+keywords: ["divide", "division", "int", "integer"]
+name: "/"
+summary: "This is the `integer division` operator."
+category: "operators"
+---
+
+This operator performs *integer* division, with the result truncated to an integer value.
+
+If the second argument is *zero* then a `Division_by_zero` exception is thrown. Refer to the [Exception](/docs/manual/latest/exception) section for handling exceptions.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let result = 3 / 2
+```
+
+```js
+var result = 1;
+```
+
+</CodeTab>
+
+For dividing *floats* see the `/.` operator.

misc_docs/syntax/operators_integer_multiplication.mdx

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+---
+id: "integer-multiplication"
+keywords: ["multiply", "multiplication", "int", "integer"]
+name: "*"
+summary: "This is the `integer multiplication` operator."
+category: "operators"
+---
+
+This operator performs *integer* multiplication.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let result = 2 * 3
+```
+
+```js
+var result = 6;
+```
+
+</CodeTab>
+
+For multiplying *floats* see the `*.` operator.

misc_docs/syntax/operators_integer_subtraction.mdx

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+---
+id: "integer-subtraction"
+keywords: ["subtract", "minus", "subtraction", "int", "integer"]
+name: "-"
+summary: "This is the `integer subtraction` operator."
+category: "operators"
+---
+
+This operator performs *integer* subtraction.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let result = 3 - 2
+```
+
+```js
+var result = 1;
+```
+
+</CodeTab>
+
+For subtracting *floats* see the `-.` operator.

misc_docs/syntax/operators_string_concatenation.mdx

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+---
+id: "string-concatenation"
+keywords: ["concat", "concatenation", "add", "string"]
+name: "++"
+summary: "This is the `string concatenation` operator."
+category: "operators"
+---
+
+This operator concatenates two *strings* together.
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let greetings = "Hello " ++ "world!"
+```
+
+```js
+var greetings = "Hello world!";
+```
+
+</CodeTab>
+
+