Documenting build dependencies in the readme.

[kp-stanislav-baiduzhyi]

No description provided.

[CLAassistant]

All committers have signed the CLA.

[github-actions]

Code coverage summary for 5c358d5:

Filename                             Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover    Branches   Missed Branches     Cover
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
wolfssl-sys/src/lib.rs                     5                 0   100.00%           2                 0   100.00%          24                 0   100.00%           0                 0         -
wolfssl/src/chacha20_poly1305.rs          14                 2    85.71%           5                 0   100.00%          95                 2    97.89%           0                 0         -
wolfssl/src/context.rs                   166                83    50.00%          46                14    69.57%         349               124    64.47%           0                 0         -
wolfssl/src/error.rs                      22                10    54.55%           7                 3    57.14%          52                10    80.77%           0                 0         -
wolfssl/src/lib.rs                        63                10    84.13%          14                 2    85.71%          84                13    84.52%           0                 0         -
wolfssl/src/rng.rs                        19                 5    73.68%           4                 0   100.00%          47                 3    93.62%           0                 0         -
wolfssl/src/ssl.rs                       477               204    57.23%          82                25    69.51%        1066               277    74.02%           0                 0         -
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
TOTAL                                    766               314    59.01%         160                44    72.50%        1717               429    75.01%           0                 0         -

✅ Region coverage 59% passes
✅ Line coverage 75% passes

[xv-ian-c]

The actual change looks good to me, but lets not list every IDE in our gitignore files.