docs: cURL write to a file instead of stdout (#25)

build/docs/content/02-html.md

@@ -33,7 +33,7 @@ $ curl --request POST \
     --url http://localhost:3000/convert/html \
     --header 'Content-Type: multipart/form-data' \
     --form files=@index.html \
-    > result.pdf
+    -o result.pdf
 ```
 
 ### Go
@@ -107,7 +107,7 @@ $ curl --request POST \
     --form files=@index.html \
     --form files=@header.html \
     --form files=@footer.html \
-    > result.pdf
+    -o result.pdf
 ```
 
 ### Go
@@ -197,7 +197,7 @@ $ curl --request POST \
     --form files=@style.css \
     --form files=@img.png \
     --form files=@font.woff \
-    > result.pdf
+    -o result.pdf
 ```
 
 ### Go
@@ -261,7 +261,7 @@ $ curl --request POST \
     --form marginLeft=0 \
     --form marginRight=0 \
     --form landscape=true \
-    > result.pdf
+    -o result.pdf
 ```
 
 ### Go

build/docs/content/03-markdown.md

@@ -36,7 +36,7 @@ $ curl --request POST \
     --header 'Content-Type: multipart/form-data' \
     --form files=@index.html \
     --form files=@file.md \
-    > result.pdf
+    -o result.pdf
 ```
 
 ### Go

build/docs/content/04-office.md

@@ -36,7 +36,7 @@ $ curl --request POST \
     --header 'Content-Type: multipart/form-data' \
     --form files=@document.docx \
     --form files=@document2.docx \
-    > result.pdf
+    -o result.pdf
 ```
 
 ### Go
@@ -88,7 +88,7 @@ $ curl --request POST \
     --form paperWidth=8.27 \
     --form paperHeight=11.27 \
     --form landscape=true \
-    > result.pdf
+    -o result.pdf
 ```
 
 ### Go

build/docs/content/05-merge.md

@@ -19,7 +19,7 @@ $ curl --request POST \
     --header 'Content-Type: multipart/form-data' \
     --form files=@file.pdf \
     --form files=@file2.pdf \
-    > result.pdf
+    -o result.pdf
 ```
 
 ### Go