Update markdown.py: Fix Blockquote. (#147)

* Update markdown.py: Fix Blockquote.
* Update text-formatting.rst: add documentation for MD blockquote
* Update markdown.py: fix an edgecase regarding quote escape character.
* minor update

Closes #74

Author: anonymousx97

docs/source/topics/text-formatting.rst

@@ -59,7 +59,23 @@ To strictly use this mode, pass :obj:`~pyrogram.enums.ParseMode.MARKDOWN` to the
 
     ~~strike~~
 
-    > blockquote
+    >blockquote
+
+    |>escaped blockquote 
+
+    >Fist line of multi line blockquote 
+    >Block quotation continued
+    >Block quotation continued
+    >Block quotation continued
+    >The last line of the block quotation
+
+    **>
+    The expandable block quotation started right after the previous block quotation
+    It is separated from the previous block quotation by expandable syntax 
+    Expandable block quotation continued
+    Hidden by default part of the expandable block quotation started
+    Expandable block quotation continued
+    The last line of the expandable block quotation with the expandability mark<**
 
     `inline fixed-width code`
 
@@ -80,7 +96,7 @@ To strictly use this mode, pass :obj:`~pyrogram.enums.ParseMode.MARKDOWN` to the
 
 .. code-block:: python
 
-    from pyrogram import enums
+    from pyrogram.enums import ParseMode
 
     await app.send_message(
         chat_id="me",
@@ -96,8 +112,27 @@ To strictly use this mode, pass :obj:`~pyrogram.enums.ParseMode.MARKDOWN` to the
             "for i in range(10):\n"
             "    print(i)"
             "```"
+
+            ">blockquote\n"
+
+            "|>escaped blockquote\n"
+
+            ">Fist line of multi line blockquote\n"
+            ">Block quotation continued\n"
+            ">Block quotation continued\n"
+            ">Block quotation continued\n"
+            ">The last line of the block quotation"
+
+            "**>\n"
+            "The expandable block quotation started right after the previous block quotation\n"
+            "It is separated from the previous block quotation by expandable syntax\n"
+            "Expandable block quotation continued\n"
+            "Hidden by default part of the expandable block quotation started\n"
+            "Expandable block quotation continued\n"
+            "The last line of the expandable block quotation with the expandability mark<**"
+
         ),
-        parse_mode=enums.ParseMode.MARKDOWN
+        parse_mode=ParseMode.MARKDOWN
     )
 
 HTML Style
@@ -136,24 +171,40 @@ To strictly use this mode, pass :obj:`~pyrogram.enums.HTML` to the *parse_mode*
 
 .. code-block:: python
 
-    from pyrogram import enums
+    from pyrogram.enums import ParseMode
 
     await app.send_message(
         chat_id="me",
         text=(
-            "<b>bold</b>, "
-            "<i>italic</i>, "
-            "<u>underline</u>, "
-            "<s>strike</s>, "
-            "<spoiler>spoiler</spoiler>, "
-            "<a href=\"https://telegramplayground.github.io/pyrogram/\">URL</a>, "
-            "<code>code</code>\n\n"
+            "<b>bold</b>, <strong>bold</strong>"
+            "<i>italic</i>, <em>italic</em>"
+            "<u>underline</u>, <ins>underline</ins>"
+            "<s>strike</s>, <strike>strike</strike>, <del>strike</del>"
+            "<spoiler>spoiler</spoiler>\n\n"
+
+            "<b>bold <i>italic bold <s>italic bold strike <spoiler>italic bold strike spoiler</spoiler></s> <u>underline italic bold</u></i> bold</b>\n\n"
+
+            "<a href=\"https://telegramplayground.github.io/pyrogram/\">inline URL</a> "
+            "<a href=\"tg://user?id=23122162\">inline mention of a user</a>\n"
+            "<emoji id=5368324170671202286>👍</emoji> "
+            "<code>inline fixed-width code</code> "
+            "<pre>pre-formatted fixed-width code block</pre>\n\n"
             "<pre language='py'>"
             "for i in range(10):\n"
             "    print(i)"
-            "</pre>"
+            "</pre>\n\n"
+
+            "<blockquote>Block quotation started"
+            "Block quotation continued"
+            "The last line of the block quotation</blockquote>"
+            "<blockquote expandable>Expandable block quotation started"
+            "Expandable block quotation continued"
+            "Expandable block quotation continued"
+            "Hidden by default part of the block quotation started"
+            "Expandable block quotation continued"
+            "The last line of the block quotation</blockquote>"
         ),
-        parse_mode=enums.ParseMode.HTML
+        parse_mode=ParseMode.HTML
     )
 
 .. note::
@@ -194,10 +245,10 @@ If you don't like this behaviour you can always choose to only enable either Mar
 
 .. code-block:: python
 
-    from pyrogram import enums
+    from pyrogram.enums import ParseMode
 
-    await app.send_message(chat_id="me", text="**bold**, <i>italic</i>", parse_mode=enums.ParseMode.MARKDOWN)
-    await app.send_message(chat_id="me", text="**bold**, <i>italic</i>", parse_mode=enums.ParseMode.HTML)
+    await app.send_message(chat_id="me", text="**bold**, <i>italic</i>", parse_mode=ParseMode.MARKDOWN)
+    await app.send_message(chat_id="me", text="**bold**, <i>italic</i>", parse_mode=ParseMode.HTML)
 
 Result:
 
@@ -210,9 +261,9 @@ The text will be sent as-is.
 
 .. code-block:: python
 
-    from pyrogram import enums
+    from pyrogram.enums import ParseMode
 
-    await app.send_message(chat_id="me", text="**bold**, <i>italic</i>", parse_mode=enums.ParseMode.DISABLED)
+    await app.send_message(chat_id="me", text="**bold**, <i>italic</i>", parse_mode=ParseMode.DISABLED)
 
 Result: