update doc

src/post.rs

@@ -17,12 +17,12 @@ pub type IDMaxString = MaxLenString<{defaults::POST_ID_MAX_LEN}>;
 /// The timestamp type used in posts
 pub type PostTimestamp = chrono::DateTime<defaults::Timezone>;
 
-/// A size limited PEM formatting specifier
+/// A size limited base64 formatting specifier
 type PostBodyFormat = formats::BothFormat<formats::MaxLenFormat<{defaults::POST_BODY_MAX_SIZE}>, formats::Base64Format>;
 
-/// A size limited PEM string
+/// A size limited base64 string
 pub type PostBodyString = hard_format::FormattedString<PostBodyFormat>;
-/// A size limited PEM string
+/// A size limited base64 string
 pub type PostBodyStr = hard_format::FormattedStr<PostBodyFormat>;
 
 /// Identifiers for a post