Revert format

README.md

@@ -337,43 +337,43 @@ Format
 
 ### General Options
 ```python
-f'{<el>:<10}'       # '<el>      '
-f'{<el>:>10}'       # '      <el>'
-f'{<el>:^10}'       # '   <el>   '
-f'{<el>:->10}'      # '------<el>'
-f'{<el>:>0}'        # '<el>'
+{<el>:<10}       # '<el>      '
+{<el>:>10}       # '      <el>'
+{<el>:^10}       # '   <el>   '
+{<el>:->10}      # '------<el>'
+{<el>:>0}        # '<el>'
 ```
 
 ### String Options
 **`'!r'` calls object's repr() method, instead of format(), to get a string.**
 ```python
-f'{"abcde"!r:<10}'  # "'abcde'   "
-f'{"abcde":.3}'     # 'abc'
-f'{"abcde":10.3}'   # 'abc       '
+{'abcde'!r:<10}  # "'abcde'   "
+{'abcde':.3}     # 'abc'
+{'abcde':10.3}   # 'abc       '
 ```
 
 ### Number Options
 ```python
-f'{ 123456:10,}'    # '   123,456'
-f'{ 123456:10_}'    # '   123_456'
-f'{ 123456:+10}'    # '   +123456'
-f'{-123456:=10}'    # '-   123456'
-f'{ 123456: }'      # ' 123456'
-f'{-123456: }'      # '-123456'
+{ 123456:10,}    # '   123,456'
+{ 123456:10_}    # '   123_456'
+{ 123456:+10}    # '   +123456'
+{-123456:=10}    # '-   123456'
+{ 123456: }      # ' 123456'
+{-123456: }      # '-123456'
 ```
 
 #### Float types:
 ```python
-f'{1.23456:10.3f}'  # '     1.235'
-f'{1.23456:10.3e}'  # ' 1.235e+00'
-f'{1.23456:10.3%}'  # '  123.456%'
+{1.23456:10.3f}  # '     1.235'
+{1.23456:10.3e}  # ' 1.235e+00'
+{1.23456:10.3%}  # '  123.456%'
 ```
 
 #### Int types:
 ```python
-f'{90:10c}'         # '         Z'
-f'{90:10X}'         # '        5A'
-f'{90:010b}'        # '0001011010'
+{90:c}           # 'Z'
+{90:X}           # '5A'
+{90:08b}         # '01011010'
 ```