Update README.md

Signed-off-by: David Rotermund <54365609+davrot@users.noreply.github.com>

python_basics/standard_libraries/README.md

@@ -18,7 +18,7 @@ Questions to [David Rotermund](mailto:davrot@uni-bremen.de)
 
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-|​string | Common string operations​|
+|**[​string](https://docs.python.org/3/library/string.html)** | **Common string operations​** |
 |re | Regular expression operations​|
 |difflib | Helpers for computing deltas​|
 |textwrap | Text wrapping and filling​|
@@ -43,21 +43,88 @@ Questions to [David Rotermund](mailto:davrot@uni-bremen.de)
 
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 |---|---|
-|**datetime** | **Basic date and time types​**|
+|**[datetime](https://docs.python.org/3/library/datetime.html)** | **Basic date and time types​**|
 |zoneinfo | IANA time zone support​|
 |calendar | General calendar-related functions​|
 |collections | Container datatypes​|
-|**collections.abc** | **Abstract Base Classes for Containers​**|
+|collections.abc | Abstract Base Classes for Containers​|
 |heapq | Heap queue algorithm​|
 |bisect | Array bisection algorithm​|
 |array | Efficient arrays of numeric values​|
 |weakref | Weak references​|
-|**types** | **Dynamic type creation and names for built-in types​**|
+|**[types](https://docs.python.org/3/library/types.html)** | **Dynamic type creation and names for built-in types​**|
 |copy | Shallow and deep copy operations​|
 |pprint | Data pretty printer​|
 |reprlib | Alternate repr() implementation​|
 |enum | Support for enumerations​|
 |graphlib | Functionality to operate with graph-like structures|
 
-470
+## [Numeric and Mathematical Modules​](https://docs.python.org/3/library/numeric.html)
+
+> The modules described in this chapter provide numeric and math-related functions and data types. The numbers module defines an abstract hierarchy of numeric types. The math and cmath modules contain various mathematical functions for floating-point and complex numbers. The decimal module supports exact representations of decimal numbers, using arbitrary precision arithmetic.
+
+|||
+|---|---|
+|numbers | Numeric abstract base classes​|
+|**[math](https://docs.python.org/3/library/math.html)** | **Mathematical functions​**|
+|cmath | Mathematical functions for complex numbers​|
+|decimal | Decimal fixed point and floating point arithmetic​|
+|fractions | Rational numbers​|
+|**[random](https://docs.python.org/3/library/random.html)** | **Generate pseudo-random numbers​**|
+|statistics | Mathematical statistics functions|
+
+## [Functional Programming Modules](https://docs.python.org/3/library/functional.html)
+
+> The modules described in this chapter provide functions and classes that support a functional programming style, and general operations on callables.
+
+|||
+|---|---|
+|itertools | Functions creating iterators for efficient looping​|
+|**[functools](https://docs.python.org/3/library/functools.html)** | **Higher-order functions and operations on callable objects​**|
+|**[operator](https://docs.python.org/3/library/operator.html)** | **Standard operators as functions**|
+
+## [File and Directory Access​](​https://docs.python.org/3/library/filesys.html)
+
+> ​The modules described in this chapter deal with disk files and directories. For example, there are modules for reading the properties of files, manipulating paths in a portable way, and creating temporary files.
+
+|||
+|---|---|
+|pathlib | Object-oriented filesystem paths​|
+|**[os.path](https://docs.python.org/3/library/os.path.html)** | **Common pathname manipulations​**|
+|fileinput | Iterate over lines from multiple input streams​|
+|stat | Interpreting stat() results​|
+|filecmp | File and Directory Comparisons​|
+|tempfile | Generate temporary files and directories​|
+|**[glob](https://docs.python.org/3/library/glob.html)** | **Unix style pathname pattern expansion​**|
+|fnmatch | Unix filename pattern matching​|
+|linecache | Random access to text lines​|
+|shutil | High-level file operations|
+
+## [Data Persistence​](​https://docs.python.org/3/library/persistence.html)
+
+> The modules described in this chapter support storing Python data in a persistent form on disk. The pickle and marshal modules can turn many Python data types into a stream of bytes and then recreate the objects from the bytes. The various DBM-related modules support a family of hash-based file formats that store a mapping of strings to other strings.​
+
+|||
+|---|---|
+|**[pickle](https://docs.python.org/3/library/pickle.html)** | **Python object serialization​**|
+|copyreg | Register pickle support functions​|
+|shelve | Python object persistence​|
+|marshal | Internal Python object serialization​|
+|dbm | Interfaces to Unix “databases”​|
+|sqlite3 | DB-API 2.0 interface for SQLite databases|
+
+## [Data Compression and Archiving](​https://docs.python.org/3/library/archiving.html)
+
+> The modules described in this chapter support data compression with the zlib, gzip, bzip2 and lzma algorithms, and the creation of ZIP- and tar-format archives. See also Archiving operations provided by the shutil module.
+
+​|||
+|---|---|
+|zlib | Compression compatible with gzip​|
+|gzip | Support for gzip files​|
+|bz2 | Support for bzip2 compression​|
+|lzma | Compression using the LZMA algorithm​|
+|zipfile | Work with ZIP archives​|
+|tarfile | Read and write tar archive files|
+
+