Update README.md

samithamphk · web-flow · commit a2dd8a982e2f · 2020-09-28T14:53:56.000+08:00
corrected a typo: 'lettersand' to 'letters and'
diff --git a/README.md b/README.md
@@ -2525,7 +2525,7 @@ False
 ### The isX String Methods
 
 - **isalpha()** returns True if the string consists only of letters and is not blank.
-- **isalnum()** returns True if the string consists only of lettersand numbers and is not blank.
+- **isalnum()** returns True if the string consists only of letters and numbers and is not blank.
 - **isdecimal()** returns True if the string consists only ofnumeric characters and is not blank.
 - **isspace()** returns True if the string consists only of spaces,tabs, and new-lines and is not blank.
 - **istitle()** returns True if the string consists only of wordsthat begin with an uppercase letter followed by onlylowercase letters.
