typo(guild/install/linux): 链接错误 pulls ->pull

[pizeroLOL]

https://github.com/xuanxuan1231/cw-docs/blob/4465785560ab2b776b286c3be39c3b7dd88ea417/guide/install.md?plain=1#L6

正确链接应为 Class-Widgets/Class-Widgets#175

[xuanxuan1231]

另外 是guide 不是guild