changed fibonacci.wasm to fibonacci.wat (WasmEdge#180)

* changed fibonacci.wasm to fibonacci.wat

Signed-off-by: tushar <[email protected]>

* added note regarding wat2wasm

Signed-off-by: tushar <[email protected]>

---------

Signed-off-by: tushar <[email protected]>

Author: tusharad

docs/embed/c/intro.md

@@ -10,7 +10,8 @@ The WasmEdge C API is also the fundamental API for other languages' SDK.
 
 ## Quick Start Guide for the WasmEdge Runner
 
-The following is an example of running a WASM file. Assume that the WASM file [fibonacci.wasm](https://github.com/WasmEdge/WasmEdge/raw/master/examples/wasm/fibonacci.wasm) is copied into the current directory, and the C file `test_wasmedge.c` is as follows:
+The following is an example of running a WASM file. Assume that the WASM file [fibonacci.wasm](https://github.com/WasmEdge/WasmEdge/raw/master/examples/wasm/fibonacci.wat) is copied into the current directory, and the C file `test_wasmedge.c` is as follows:
+Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
 
 ```c
 #include <wasmedge/wasmedge.h>
@@ -55,7 +56,8 @@ Get result: 3524578
 
 ## Quick Start Guide for the WasmEdge AOT compiler
 
-Assume that the WASM file [fibonacci.wasm](https://github.com/WasmEdge/WasmEdge/raw/master/examples/wasm/fibonacci.wasm) is copied into the current directory, and the C file `test_wasmedge_compiler.c` is as follows:
+Assume that the WASM file [fibonacci.wasm](https://github.com/WasmEdge/WasmEdge/raw/master/examples/wasm/fibonacci.wat) is copied into the current directory, and the C file `test_wasmedge_compiler.c` is as follows:
+Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
 
 ```c
 #include <wasmedge/wasmedge.h>

docs/embed/c/reference/latest.md

@@ -740,7 +740,8 @@ In this partition, we will introduce the functions of `WasmEdge_VMContext` objec
 
 ### WASM Execution Example With VM Context
 
-The following shows the example of running the WASM for getting the Fibonacci. This example uses the [fibonacci.wasm](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wasm), and the corresponding WAT file is at [fibonacci.wat](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat).
+The following shows the example of running the WASM for getting the Fibonacci. This example uses the [fibonacci.wasm](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat), and the corresponding WAT file is at [fibonacci.wat](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat).
+Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
 
 ```wasm
 (module
@@ -762,8 +763,9 @@ The following shows the example of running the WASM for getting the Fibonacci. T
 
 1. Run WASM functions rapidly
 
-   Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wasm) is copied into the current directory, and the C file `test.c` is as following:
-
+   Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat) is copied into the current directory, and the C file `test.c` is as following:
+   Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
+   
    ```c
    #include <stdio.h>
    #include <wasmedge/wasmedge.h>
@@ -1070,7 +1072,9 @@ In WebAssembly, the instances in WASM modules can be exported and can be importe
 
 1. Register the WASM modules with exported module names
 
-   Unless the module instances have already contained the module names, every WASM module should be named uniquely when registering. Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wasm) is copied into the current directory.
+   Unless the module instances have already contained the module names, every WASM module should be named uniquely when registering. Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat) is copied into the current directory.
+   Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
+
 
    ```c
    WasmEdge_VMContext *VMCxt = WasmEdge_VMCreate(NULL, NULL);
@@ -1163,7 +1167,9 @@ In WebAssembly, the instances in WASM modules can be exported and can be importe
 
 1. Asynchronously run WASM functions rapidly
 
-   Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wasm) is copied into the current directory, and the C file `test.c` is as following:
+   Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat) is copied into the current directory, and the C file `test.c` is as following:
+   Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
+
 
    ```c
    #include <wasmedge/wasmedge.h>
@@ -1341,7 +1347,9 @@ Sometimes the developers may have requirements to get the instances of the WASM
 
 2. List exported functions
 
-   After the WASM module instantiation, developers can use the `WasmEdge_VMExecute()` API to invoke the exported WASM functions. For this purpose, developers may need information about the exported WASM function list. Please refer to the [Instances in runtime](#instances) for the details about the function types. Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wasm) is copied into the current directory, and the C file `test.c` is as following:
+   After the WASM module instantiation, developers can use the `WasmEdge_VMExecute()` API to invoke the exported WASM functions. For this purpose, developers may need information about the exported WASM function list. Please refer to the [Instances in runtime](#instances) for the details about the function types. Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat) is copied into the current directory, and the C file `test.c` is as following:
+   Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
+
 
    ```c
    #include <wasmedge/wasmedge.h>
@@ -1477,7 +1485,9 @@ In this partition, we will introduce the objects of WasmEdge runtime manually.
 
 ### WASM Execution Example Step-By-Step
 
-Besides the WASM execution through the [`VM` context](#wasmedge-vm), developers can execute the WASM functions or instantiate WASM modules step-by-step with the `Loader`, `Validator`, `Executor`, and `Store` contexts. Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wasm) is copied into the current directory, and the C file `test.c` is as following:
+Besides the WASM execution through the [`VM` context](#wasmedge-vm), developers can execute the WASM functions or instantiate WASM modules step-by-step with the `Loader`, `Validator`, `Executor`, and `Store` contexts. Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat) is copied into the current directory, and the C file `test.c` is as following:
+Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
+
 
 ```c
 #include <wasmedge/wasmedge.h>
@@ -2796,7 +2806,9 @@ WasmEdge runs the WASM files in interpreter mode, and WasmEdge also supports the
 
 ### Compilation Example
 
-Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wasm) is copied into the current directory, and the C file `test.c` is as following:
+Assume that the WASM file [`fibonacci.wasm`](https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/examples/wasm/fibonacci.wat) is copied into the current directory, and the C file `test.c` is as following:
+Please Note: In the example directory, `fibonacci.wat` file is provided and users should convert it into corresponding wasm file using [WABT tool](https://github.com/WebAssembly/wabt)
+
 
 ```c
 #include <wasmedge/wasmedge.h>