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README.md Fix typos

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@ -2336,7 +2336,7 @@ nan
#### 💡 Explanation: #### 💡 Explanation:
`'inf'` and `'nan'` are special strings (case-insensitive), which when explicitly typecasted to `float` type, are used to represent mathematical "infinity" and "not a number" respectively. `'inf'` and `'nan'` are special strings (case-insensitive), which when explicitly typecast-ed to `float` type, are used to represent mathematical "infinity" and "not a number" respectively.
--- ---
@ -2382,7 +2382,7 @@ nan
>>> 44 >>> 44
``` ```
**💡 Explanation:** **💡 Explanation:**
This prank comes from [Raymond Hettinger's tweet](https://twitter.com/raymondh/status/1131103570856632321?lang=en). The space invader operator is actually just a malformatted `a -= (-1)`. Which is eqivalent to `a = a - (- 1)`. Similar for the `a += (+ 1)` case. This prank comes from [Raymond Hettinger's tweet](https://twitter.com/raymondh/status/1131103570856632321?lang=en). The space invader operator is actually just a malformatted `a -= (-1)`. Which is equivalent to `a = a - (- 1)`. Similar for the `a += (+ 1)` case.
* Python uses 2 bytes for local variable storage in functions. In theory, this means that only 65536 variables can be defined in a function. However, python has a handy solution built in that can be used to store more than 2^16 variable names. The following code demonstrates what happens in the stack when more than 65536 local variables are defined (Warning: This code prints around 2^18 lines of text, so be prepared!): * Python uses 2 bytes for local variable storage in functions. In theory, this means that only 65536 variables can be defined in a function. However, python has a handy solution built in that can be used to store more than 2^16 variable names. The following code demonstrates what happens in the stack when more than 65536 local variables are defined (Warning: This code prints around 2^18 lines of text, so be prepared!):
```py ```py
@ -2390,7 +2390,7 @@ nan
exec(""" exec("""
def f(): def f():
""" + """ """ + """
""".join(["X"+str(x)+"=" + str(x) for x in range(65539)])) """.join(["X" + str(x) + "=" + str(x) for x in range(65539)]))
f() f()